Both men had a particular impact during the 1960\u2019s and their products were owned by the style leaders of the swinging sixties [ see A&R article on \u201cThe Avengers\u201d and Carnaby Street, as noted their cars were launched\u00a0 at the Racing Car Show.<\/li>\n<\/ul>\nIt ought to be appreciated that Marcos production and model range was far less than Lotus and of course they did not compete in FI or Indianapolis etc.<\/p>\n
Jem Marsh was born in Clifton, Bristol in 1930. [Note close contemporary of Colin Chapman]. His family were reasonably well of .Both his father and step father had interests in motorsport.<\/p>\n
Jem Marsh spent many years in the Navy. He enjoyed photography and developed this as sideline. Following this he had employment as a stunt driver, car salesman and gained some useful experience at Firestone\u2019s.<\/p>\n
Jem Marsh is a tall lean man and this is unusual in a racing driver and probably incongruous in the compact cigar body racers of the 1950\u2019s. Jem was competitive on and off the track and possessed a strong sense of vision and determination when motivated and focused. Jem entered racing through the 750 Motor Club and drove an Austin Special with some success. He had his first race in 1954. Of the early mid 1950\u2019s he stated:-<\/p>\n
\u201cWe could pick up Austin Seven\u2019s for \u00a35\u201d<\/p>\n
During the 1950\u2019s in Britain there was a demand for second hand cars due to many factors including the war, postwar austerity, export preventing home market availability and also purchase tax etc.<\/p>\n
Note these factors would be significant until the widely available introduction of the Mini and Austin Healey Sprite Mk.I in the late 1950\u2019s.<\/p>\n
These factors created a market for second hand cars and possible specials as a derivative. Jem would have had a special perspective on this [as did Chapman] from racing and observation\/ experience. It was probably the demand for tuning equipment \/ conversion parts that led him to form Speedex. It is worth looking at period magazines to see the companies that were providing tuning and\u00a0aftermarket spares. These included Aquaplane, Dante, Super Accessories and LMB [Lesley Ballamy for whom Jem worked briefly-see A&R articles]<\/p>\n
Speedex Castings and Accessories was formed c 1957 and based at Luton.Amongst the parts he supplied included cylinder heads, alloy wheels, wishbone suspension and related items for Austin Seven and Ford 10 [nb Ford specials and 1172 Formula racing] Speedex catered for calling customers and mailorder.By 1958 Speedex offered a 2 seat body conversion for the Austin Seven which looked slightly like a Lotus Seven. Soon after an aerodynamic fibre glass shell was offered .This was designed by Mike Featherstonhaugh.<\/p>\n
Jem Marsh was also competing in his own 750 Formula racing car. He would be in contact with the network of people and organizations particularly 750 MC around London the acknowledged epicenter of postwar motor sport and where many of the Ford special manufacturers were based.<\/p>\n
Jem was possibly thinking of a new car kit project that might be multi-functional, competitive and cut an advantage in club racing or to use a modern terminology find a niche. Therefore when he was able to discuss plans with Frank Costin there may have been a shared vision of the market and a suitable product they could create. Please see dedicated paragraphs for extended analysis of the Marcos cars]<\/p>\n
The marque name Marcos is combination of these men\u2019s surnames.<\/p>\n
Jem Marsh split from Frank Costin and in the early 1960\u2019s set up production at Bradford on Avon. Here he was to enjoy both financial support and encouragement from Grenville Cavendish c 1962-66.<\/p>\n
He has been a business man and experienced his fair share of commercial problems. Throughout this has retained a sense of humour and charm. Jem has evident energy which some believe borders on restlessness .He is certainly not pretentious and slightly anti-establishment but this must be balanced by the fact he has held senior roles in the HSCC and SMMT Specialist Car Group. He remains his own man.<\/p>\n
Jem Marsh has brought longevity to the marque and a continuous development as he has owned and driven hard the products both on and off the track. In many respects he is a legend in his life time and made a long and important role within British motor sport .Although perhaps unlike Chapman reaching the highest echelon of GP FI and Indianapolis, Jem has concentrated mainly and successfully at sports car racing at club level but also attempted Le Mans.Although a big man in stature he has been something of a giant killer in that he drove smaller capacity machines to success against larger and more powerful opposition.<\/p>\n
Frank Costin<\/strong><\/p>\nWe recommend our subscribers to see our extended and dedicated article on Frank Costin in our contemporary\u2019s series. Frank Costin had experience of the 2nd<\/sup> World War Mosquito and allied construction \/ design of gliders and light aircraft.<\/p>\nDennis Adams<\/strong><\/p>\nDennis Adams holds an important place in British specialist motor design. He was self-taught and gained some early experience at Lister\u2019s in Cambridge. He is believed to have served in the RAF.His designs include:-<\/p>\n
\n- Adams Roadster<\/li>\n
- Probe series 15 onwards through to Probe 2001[Probe was dubbed \u201can investigation into extreme of styling\u201d ]<\/li>\n
- Autocars project<\/li>\n
- Sports racing cars [see chapter XP Group 3]<\/li>\n
- Luxury off road vehicles<\/li>\n
- Recreations \/reinventions interpretations of classic\/ veteran vehicles<\/li>\n
- Single seat commuter car<\/li>\n
- Futuristic\u00a0 3 seat vehicle<\/li>\n
- Wrought iron work<\/li>\n
- Furniture<\/li>\n<\/ul>\n
His most famous and memorable work is probably the original Marcos 1800. [See sketches p 66 \u201cMarcos\u201d by Barber & page 107 \u201cSpecialist Sports Cars\u201d by Heseltine] this car possesses elements of the Ferrari GTO \/GTB and the aerodynamic E Type Jaguar and perhaps also the Alfa Romeo GTZ.<\/p>\n
Adams is also famous for the appearearnce of the Probe in the iconic film \u201cClockwork Orange\u201d<\/p>\n
It\u2019s believed that from the early 60\u2019s he undertook design consultancy and that by the early 1980\u2019s he formed a design consultancy named Adams Design Studio. He was featured along with Probe 16 in Daily Telegraph supplement discussing British designers which also included Chapman. The Probe was also given some prominence at the London Motor show when Styling was promoted again involving the Telegraph.<\/p>\n
His brother Peter was a skilled carpenter and contributed significantly to the chassis constructed of marine ply.<\/p>\n
When first taken on and working in Wales with Frank Costin it\u2019s believed his wage was \u00a335 month.<\/p>\n
Gullwing GT prototype [Xylon?]:c1959<\/strong><\/p>\nThis car was designed by Frank Costin .The prototype is believed to have his design for both body and chassis.<\/p>\n
The GT possibly had a brief that contained some of the following elements:-<\/p>\n
\n- The GT was possibly conceived primarily as a sports car for road use with the potential for competition<\/li>\n
- To be enclosed: I \/ for aerodynamics, ii \/ for advantage racing class,iii \/ comfort \/protection combined road \/race car, iv \/ address new generation Mini & AH Sprite etc.<\/li>\n
- In order to be competitive weigh same or less than Lotus Seven with greater torsional rigidity [it\u2019s believed that Costin aspired to a weight between 7-8 cwt.]<\/li>\n
- Ability to accept proprietary parts notably Ford: I economy\/ availability ,ii tuneability, iii eligibility for racing class<\/li>\n<\/ul>\n
Frank Costin is reputed to have referred to the Xylon as \u201ca dry Lotus Seven\u201d<\/p>\n
The prototype was registered as DFF 529. It\u2019s likely that it was built through 1959 and registered in 1960.It\u2019s believed that it was painted a dark colour [as indicated by B&W photographs] possibly blue with unpainted aluminum guards front and rear.<\/p>\n
In appearance the prototype possessed:-<\/p>\n
\n- Gullwing door arrangement with large side window<\/li>\n
- Low bonnet with long tapering nose cone<\/li>\n
- 4 piece windscreen<\/li>\n
- High cabin [ nb Jem Marsh\u2019s height]<\/li>\n
- Cycle guards front and rear where they are integrated with body<\/li>\n
- Small low and close set headlamps<\/li>\n
- Curious rear end \/ cabin treatment<\/li>\n<\/ul>\n
The appearance was functional and aerodynamic if not particularly aesthetic. It was produced at minimum costs with little or no specialist input and in very rudimentary workspace\/ facilities.<\/p>\n
The Chassis<\/em><\/p>\nStructural timber<\/em><\/p>\nTimber is not a material associated with the chassis of motor cars but it has excellent properties and is used to advantage in: boats, planes, gliders, furniture, and architecture and of course in many prewar automobiles where it was used for framing. It is strong, stable durable and has a modest weight. It\u2019s relatively easily worked and joined. Its strength can be increased when it is veneered, laminated or resin bonded.<\/p>\n
The chassis was constructed of special laminated plywood on the monocoque principle and joined using the synthetic Aerolite 300 adhesive. Small sections are assembled into a whole by gluing and stapling.\u00a0 Localized stress areas were reinforced. There are not many photographs of the chassis but a diagram appears in Jem Marsh\u2019s book, pictures in Haynes and possibly the best image of the chassis, engine bay and front suspension appears in \u201cThe Post War Touring Car\u201d along with a front three quarter photograph of the completed 759 DBM. A good verbal description interestingly appeared in a review published by \u201cSports Car and Lotus Owner\u201d<\/p>\n
Twite comments that:-<\/p>\n
\u201cThe basis of chassis is two deep side boxes which are joined by various cross members, all of which are glued together, no bolts are used at all. The side boxes are of necessity very deep to give the necessary strength and this causes some problems with entry and exit.\u201d<\/p>\n
Essentially the chassis was formed of three \u201ctorsion\u201d boxes fore and aft and three crossways.<\/p>\n
Some have compared the constructional method with three primary longerons as used in airframe fuselages.<\/p>\n
The advantage of the marine ply\/spruce monocoque included:-<\/p>\n
\n- Strength<\/li>\n
- Fire resistance<\/li>\n
- Impervious to extremes of temperature<\/li>\n
- Corrosion proof<\/li>\n
- Does not fatigue in same way as metal<\/li>\n
- Relatively easily repaired as damage often localized and tending not to impact through chassis Vis tube space frame.<\/li>\n
- Reasonably energy absorbing\u00a0 in accident therefore reasonably safe<\/li>\n
- Assembly jigs reasonable easy and cheap to make<\/li>\n<\/ul>\n
The chassis for the prototype and early cars was made by the Monocque Chassis & Body Co.Ltd. Headed by Frank Costin. They were based in Dolgellau, and not long after Llanberis, Wales<\/p>\n
Mechanical Specification [Summary]<\/em><\/p>\nThe GT was offered with a variety of engines and the following generalized specification:-<\/p>\n
Front suspension independent by coil; Standard\/ Triumph [e.g. Herald] steering and suspension components which were very well designed. They are mounted on the wooden frame by a triangular steel frame.<\/p>\n
Standard rear axle \u2013choice ratios rear semi elliptic spring according to some sources possibly on prototype others suggest coil springs<\/p>\n
Engines\/gearbox : the prototype used the Ford 1172 cc side valve thereafter\u00a0\u00a0 Ford 105 E [ most often used for racing in 1000cc GT class] and 122E, twin SU carburetors, Ford\u00a0 [or Hewland five speed conversion for racing ]\u00a0 gearbox, hydraulic brakes. Some sources suggest that the Nash Metropolitan rear axle was utilized. It\u2019s also possible that a Formula Junior engine was considered [see A&R article]<\/p>\n
The GT was well equipped<\/p>\n
Dimensions<\/em><\/p>\nWheel base\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 7\u2019-3\u201d<\/p>\n
Front track\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4\u2019<\/p>\n
Rear track\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4\u2019<\/p>\n
Overall length\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 12\u2019<\/p>\n
Overall width\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4\u2019-7\u201d<\/p>\n
Overall height\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 4\u2019-6\u201d<\/p>\n
Kerb weight\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1008 lbs. [includes 5 galls. Fuel]<\/p>\n
Performance and handling were quite exceptional due to the excellent power to weight ratio. The GT offered handling, economy and convenience.<\/p>\n
It almost immediately did well in competition including winning both the 1961 and 1962 Autosport Championships. Drivers who helped establish its reputation beside Marsh included Bill Moss, S.Diggery, Chris Meek and of course Jackie Stewart.<\/p>\n
Following the prototype with its unconventional looks there was both a slight aerodynamic and aesthetic improvement with a front end bearing some resemblance to a \u201cFrog Eye\u201d Mk.I Sprite. Some examples also had transparent Perspex covers \/fairings over the lights.<\/p>\n
Marketing and Sales<\/em><\/p>\nJem marsh headed up the sales concessionaires at his Speedex Castings & Accessories based at Luton.<\/p>\n
Famous GT Registration Numbers<\/em><\/p>\nNOD 1<\/p>\n
80 SNK<\/p>\n
G 128<\/p>\n
8853 JH<\/p>\n
759 DBM<\/p>\n
Spyder\/Fastback\/GT: c1962\/63<\/strong><\/p>\nThis model seems to be primarily an aesthetic upgrading of the original model. It appears to retain the laminated marine ply construction with a proprietary wood preservative treatment. The screen had become wrap-round and integrated with the rounded aerodynamic body shape. The gull wing doors were retained in a \u201cbubble\u201d type canopy over the cockpit. Triumph suspension was used and Standard 10 back axle. There seems to be a choice of engines including Ford [ohv] with twin carburetors. Disc brakes were fitted on the front wheels which might be standard pressed steel or mag-alloy. The editors believe it was first displayed at the Racing Car Show of 1963.<\/p>\n
The following specification is provided by Twite.<\/p>\n
\n\n\nSpecification<\/td>\n | \u00a0<\/strong><\/td>\n<\/tr>\n\nEngine \/Cyli<\/td>\n | 4-water cooled<\/td>\n<\/tr>\n | \nBore \/Stroke<\/td>\n | 80.9 x 48.5<\/td>\n<\/tr>\n | \nCC<\/td>\n | 997<\/td>\n<\/tr>\n | \nValve Gear<\/td>\n | ohv<\/td>\n<\/tr>\n | \nComp Ratio<\/td>\n | 10:01<\/td>\n<\/tr>\n | \nCarburettors<\/td>\n | Twin Weber<\/td>\n<\/tr>\n | \nMax.Power<\/td>\n | 85 bhp @ 7500 rpm<\/td>\n<\/tr>\n | \nTrans\/Gears<\/td>\n | 4<\/td>\n<\/tr>\n | \nFront Brakes<\/td>\n | Disc 9″ dia<\/td>\n<\/tr>\n | \nRear Brakes<\/td>\n | Drum 8″ dia<\/td>\n<\/tr>\n | \nSteering<\/td>\n | Rack & pinion<\/td>\n<\/tr>\n | \nFront Susp’<\/td>\n | Ind’ x coil spring<\/td>\n<\/tr>\n | \nRear Susp’<\/td>\n | Rigid axle & coil springs<\/td>\n<\/tr>\n | \nChassis<\/td>\n | Laminated plywood unit construction<\/td>\n<\/tr>\n | \nWheel base<\/td>\n | 7′-6″<\/td>\n<\/tr>\n | \nFront Track<\/td>\n | 4′-2″<\/td>\n<\/tr>\n | \nRear Track<\/td>\n | 4′-0.5″<\/td>\n<\/tr>\n | \nO’length<\/td>\n | 13′<\/td>\n<\/tr>\n | \nO’width.body<\/td>\n | 4′-8″<\/td>\n<\/tr>\n | \nKerb weight<\/td>\n | 1,000 lbs<\/td>\n<\/tr>\n | \nFront Tyres<\/td>\n | 5.60 x 13<\/td>\n<\/tr>\n | \nRear Tyres<\/td>\n | 5.60 x 13<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Twite records that a works car was entered for Le Mans in 1962.<\/p>\n Famous Registrations:-<\/p>\n 3 FNM<\/p>\n HOO 144<\/p>\n The Marcos \u201cFastback\u201d<\/p>\n The Marcos Spyder fell between two stools. Some observers claim it was too basic as road based sports car. There were very few orders and production data confirms this. It was offered as an open two seater later upgraded with a bubble type hardtop canopy.However the preference of the racing community possibly vis classes was for a permanent fully integrated hardtop and this was developed by Marcos by mid-1963 and is most frequently referred to as the fast back.<\/p>\n XP: \u201cScience-fiction\u201d <\/strong>prototype: c1963<\/strong><\/p>\nThe XP is a totally unusual car and none of the text books give adequate answers for its role or its potential market. It appears to have some of the shape of an ultra-aerodynamic creation of Frank Costin to deliver exceptional fuel economy .The XP appears to have been designed for a much larger engine possibly even a V6 or V8 possibly intended to be rear mounted. The central steering wheel and three abreast accommodation seems too radical for the British market \/era and it might be questioned if the car was commissioned for purposes other than road transport or as means of gaining publicity. Motoring historians seen uncritical about the cause of its demise.<\/p>\n Marcos 1800:1964 -66\/ 1966-67, 1967-68<\/strong><\/p>\nIt might be contended that the Xylon, Gullwing\/Coupe and Fastback although proposed as road \/race cars had succeeded primarily as club racers. Therefore it possible that when Jem Marsh commissioned a new design from Dennis Adams he wished for a genuine road sports car and for non-racing customers [potentially a much bigger audience] having said that the Marcos 1800 appeared at the 1964 Racing Car Show .The car bore a likeness to the aerodynamic bodied E Type, Ferrari GTO\/GTB and the Alfa Romeo GTZ.It was strikingly low sleek, stylish, of its time and extremely beautifully finished inside and out. The dashboard, interior and steering wheel were very highly regarded and impressive as were the specially cast alloy mag wheels. The dash board in particular evoked aviation practice [see \u201cBritish Auto Legends\u201d It was extremely low [necessitating semi reclining seats] and this made it very memorable and accentuated its shape. It was possibly this dramatic appearance that caused the 1800 to be sold to celebrities, pop stars and rock royalty and which perhaps gained it such a powerful early reputation. It was well received by the press.<\/p>\n It\u2019s believed that the car had been designed to accommodate tall drivers like Jem Marsh. In order to allow for varying heights adjustable pedals and steering column were included .The seats being fixed.<\/p>\n The cockpit trim was possibly far and above that of what is associated with a kit car and head restraints were adopted.<\/p>\n Like the earlier GT it was constructed from marine ply box sections comprising door cills, front footweels, and transmission tunnel and united with a one-piece marine ply baseboard. The construction is often alluded to as \u201cmulti-monocoque\u201d. The body in GRP was unstressed.<\/p>\n The mechanical specification included the Marcos tuned Volvo engine and gearbox.<\/p>\n The Marcos 1800 was offered as turnkey or in component kit form. The kit was comprehensive and it\u2019s estimated that it could be assembled in approximately 24 hours. The manufacturers provided a long list of extras. The Marcos 1800 was very expensive and in price league of an E Type.<\/p>\n Critics commented that the car was noisy, cramped, access was difficult and that storage space was very limited. However performance and handling were excellent resulting from approximate 50\/50 weight distribution; engine behind axle line.<\/p>\n Stan Gray played an important role in the cars development.<\/p>\n The following specification is quoted in \u201cAutomobiles\u201d<\/p>\n \n\n\nSpecification<\/td>\n | Marcos 1800 GT<\/td>\n<\/tr>\n | \nNo. of Cylinders<\/td>\n | 4:Volvo<\/td>\n<\/tr>\n | \nCubic Capacity<\/td>\n | 1783 cc [1788cc?]<\/td>\n<\/tr>\n | \nCompression Ratio<\/td>\n | 10:01<\/td>\n<\/tr>\n | \nBHP<\/td>\n | 114<\/td>\n<\/tr>\n | \nMax. mph<\/td>\n | 115<\/td>\n<\/tr>\n | \nOverall length<\/td>\n | 13′-3″<\/td>\n<\/tr>\n | \nOverall width<\/td>\n | 5′-2.5″<\/td>\n<\/tr>\n | \nHeight<\/td>\n | 3′-5.5″<\/td>\n<\/tr>\n | \nWheel base<\/td>\n | 7′-5″<\/td>\n<\/tr>\n | \nTrack [front]<\/td>\n | 4′-1″<\/td>\n<\/tr>\n | \nTrack [rear]<\/td>\n | 4′-1.5″<\/td>\n<\/tr>\n | \nWeight<\/td>\n | 11.75 cwt [approx.]<\/td>\n<\/tr>\n | \nTurning circle<\/td>\n | 30′<\/td>\n<\/tr>\n | \nFuel tank capacity<\/td>\n | 12 Imp.\u00a0 gals<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u00a0Additional \/supplementary specification:<\/p>\n Front track\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 49\u201d<\/p>\n Rear track\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 49\u201d<\/p>\n Wheelbase\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 89\u201d<\/p>\n Ground clearance \u00a0\u00a0 5\u201d<\/p>\n Tyres\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 5.90 x 13 [5.5 J] Mag \u2013alloy option & Pirelli tyres<\/p>\n Weight\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1215 lbs. [dry] 1702lbs and 1336 lbs.<\/p>\n Haynes in \u201cGuide to Component Cars\u201d suggests that on a smooth surface the Marcos 1800 might be compared with the Lotus Elan. He also records:-<\/p>\n \u201cThe Marcos is a really splendid sports car with exciting styling.\u201d<\/p>\n Other engine options through this period included hose by Ford of 1783cc 1498cc 1650 cc. Ford engines were often fitted with twin carburetors. The 1650 cc engine was supplied by Lawrencetune.<\/p>\n \n\n\nMarque<\/td>\n | Marcos<\/td>\n | <\/td>\n<\/tr>\n | \nModel<\/td>\n | 1600<\/td>\n | 1500<\/td>\n<\/tr>\n | \nDisplacement<\/td>\n | 1,599 cc<\/td>\n | 1,499 cc<\/td>\n<\/tr>\n | \nMaximum HP<\/td>\n | 95 DIN<\/td>\n | <\/td>\n<\/tr>\n | \nMaximum speed<\/td>\n | 120 mph<\/td>\n | <\/td>\n<\/tr>\n | \nWheel base<\/td>\n | 88.9″<\/td>\n | <\/td>\n<\/tr>\n | \nFront track<\/td>\n | 50′.5″<\/td>\n | <\/td>\n<\/tr>\n | \nRear track<\/td>\n | 52′-0″<\/td>\n | <\/td>\n<\/tr>\n | \nOverall length<\/td>\n | 160.5″<\/td>\n | <\/td>\n<\/tr>\n | \nKerb weight<\/td>\n | 14.8 cwt.<\/td>\n | <\/td>\n<\/tr>\n | \nBody<\/td>\n | 2 door, 2 seat coupe<\/td>\n | <\/td>\n<\/tr>\n | \nTyres<\/td>\n | 165 x 13<\/td>\n | <\/td>\n<\/tr>\n | \nFuel capacity<\/td>\n | 10 gals.<\/td>\n | <\/td>\n<\/tr>\n | \nEngine<\/td>\n | Ford<\/td>\n | <\/td>\n<\/tr>\n | \nCylinders<\/td>\n | 4<\/td>\n | <\/td>\n<\/tr>\n | \nBore \/stroke<\/td>\n | 81 x 77.6 mm<\/td>\n | <\/td>\n<\/tr>\n | \nCompression ratio<\/td>\n | 9.6:1<\/td>\n | <\/td>\n<\/tr>\n | \nMaximum power<\/td>\n | 95 bhp @ 5,500 rpm<\/td>\n | 85 bhp @ 5,300 rpm<\/td>\n<\/tr>\n | \nCarburettors<\/td>\n | Weber<\/td>\n | Twin CD Stromberg<\/td>\n<\/tr>\n | \nCooling<\/td>\n | Water cooled<\/td>\n | <\/td>\n<\/tr>\n | \nValves<\/td>\n | Push rod<\/td>\n | <\/td>\n<\/tr>\n | \nTransmission<\/td>\n | Rear wheel drive<\/td>\n | <\/td>\n<\/tr>\n | \nClutch \/Gearbox<\/td>\n | Diaphram clutch \/4 speed<\/td>\n | <\/td>\n<\/tr>\n | \nChassis<\/td>\n | Monocoque of marine ply , forward structure steel tube; body f-glass panels<\/td>\n<\/tr>\n | \nSuspension front<\/td>\n | Independent wishbone, coil springs tele-shock absorbers<\/td>\n | <\/td>\n<\/tr>\n | \nRear suspension<\/td>\n | Fixed axle, coil springs, oblique thrust rods, telescopic shock absorbers<\/td>\n<\/tr>\n | \nSteering<\/td>\n | Rack & pinion<\/td>\n | <\/td>\n<\/tr>\n | \nBrakes<\/td>\n | Disc front \/drum rear<\/td>\n | <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u00a0Mini Marcos: 1965-74 \u2013 [nb reintroduction 1991]<\/strong><\/p>\nPublished sources do not inform with regard to the commercial intentions of the Mini Marcos or the proposed customer base. Several motoring historians suggest that Jem Marsh saw a similar design at the Racing Car Show and was able to get his version into production earlier. Possible factors that shaped its existence are:-<\/p>\n \n- The Marcos 1800 was an aesthetic success but expensive ; limited sales were predictable against established competition<\/li>\n
- The Mini had been in production for some time , second hand and crashed cars were available<\/li>\n
- The Mini had established a reputation in racing. Competition and rallies. There were after market and tuning modifications available<\/li>\n
- The Mini came in various engine sizes giving customers choice [841, 1098, 1275 cc]<\/li>\n
- The Mini Marcos potentially could fulfill an updated role of the Speedex and earlier body shells fitted to Ford specials<\/li>\n
- Body shell production would be easier than assembling and selling complete cars. It was likely to have higher turnover and geater volume sales<\/li>\n
- It provided some competition opportunities because it was slightly lighter than the Mini<\/li>\n
- In some respects the Mini Marcos was reworking at least of the principals involved with the Xylon<\/li>\n
- Jem Marsh might have seen the Mini Marcos as baby or starter model to ongoing Marcos ownership or larger and more expensive models<\/li>\n<\/ul>\n
Malcolm Newell takes primary responsibility for the design of the original Mini Marcos. Although it\u2019s believed Malcolm Sharp also made worthwhile contributions. Its launch was the 1966 Racing Car Show.<\/p>\n The Mini Marcos was a two seat coupe using a glass fibre monocque shell with tubular sub-structure and possibly a wooden floor designed to take Mini mechanical components and sub frames with a wide range of options \/ tuning etc. Both rubber and hydrolastic suspension are believed to have been fitted. It was offered in kit form and was reasonably affordable.<\/p>\n The car proved light, simple and enjoyed great handling and performance as a result of the f.w.d and transverse engine. It was very British.<\/p>\n The Mini Marcos despite its somewhat crude yet functional appearance produced a low drag and deceptively small frontal area.<\/p>\n The Mini Marcos was not considered particularly aesthetically pleasing by some although the authors credit with it with an extremely functionality and its shape was determined by economics and the retention of standard Mini parts. Notably the front mounted radiator. This is an interesting study of aesthetics as applied to form and function where function predominated. The Mini Marcos proved fast, reliable, competitive and significantly, cheap.<\/p>\n The Mini Marcos did well in competition and earned a reputation at Le Mans where it competed in 1966 and 1967.<\/p>\n The manufacturing rights of Mini Marcos has been bought and sold on many occasions. It therefore has chequred history. It has been sold in various occasions either as a complete assembled car or as a kit. Between its launch and 1974 its estimated 700 were sold.<\/p>\n \n\n\nMarque<\/td>\n | Marcos<\/td>\n<\/tr>\n | \nModel<\/td>\n | Mini-Marcos 1300 GT<\/td>\n<\/tr>\n | \nDisplacement<\/td>\n | 1,275 cc<\/td>\n<\/tr>\n | \nMaximum HP<\/td>\n | 76 SAE<\/td>\n<\/tr>\n | \nMaximum speed<\/td>\n | 105 mph<\/td>\n<\/tr>\n | \nWheel base<\/td>\n | 80″<\/td>\n<\/tr>\n | \nFront track<\/td>\n | 48.5″<\/td>\n<\/tr>\n | \nRear track<\/td>\n | 47.3″<\/td>\n<\/tr>\n | \nOverall length<\/td>\n | 125.5″<\/td>\n<\/tr>\n | \nKerb weight<\/td>\n | 10 cwt<\/td>\n<\/tr>\n | \nBody<\/td>\n | 2-door, 2-seat plastic construction<\/td>\n<\/tr>\n | \nTyres<\/td>\n | 145 x 10<\/td>\n<\/tr>\n | \nFuel capacity<\/td>\n | 6 gals.<\/td>\n<\/tr>\n | \nEngine<\/td>\n | BMC Mini Cooper S<\/td>\n<\/tr>\n | \nCylinders<\/td>\n | 4<\/td>\n<\/tr>\n | \nBore \/stroke<\/td>\n | 70.6 x 81.33 mm<\/td>\n<\/tr>\n | \nCompression ratio<\/td>\n | 9.75:1<\/td>\n<\/tr>\n | \nMaximum power<\/td>\n | 76 bhp @ 6,00 rpm<\/td>\n<\/tr>\n | \nCarburettors<\/td>\n | Twin SU semi-downdraught<\/td>\n<\/tr>\n | \nCooling<\/td>\n | Water cooled<\/td>\n<\/tr>\n | \nValves<\/td>\n | ohv<\/td>\n<\/tr>\n | \nTransmission<\/td>\n | Front wheel drive<\/td>\n<\/tr>\n | \nClutch \/Gearbox<\/td>\n | Diaphram clutch \/4 speed gearbox<\/td>\n<\/tr>\n | \nChassis<\/td>\n | Utilises BMC Mini sub frame<\/td>\n<\/tr>\n | \nSuspension front<\/td>\n | Independent “Hydrolastic” unis T&B arms & tie rod<\/td>\n<\/tr>\n | \nRear suspension<\/td>\n | Independent “Hydrolastic” units located by trailing arms<\/td>\n<\/tr>\n | \nSteering<\/td>\n | Rack & pinion<\/td>\n<\/tr>\n | \nBrakes<\/td>\n | Disc front , drum rear<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u00a0XP Group 3:1968<\/strong><\/p>\nIt\u2019s believed that the code letters stood for \u201cExperimental Project\u201d<\/p>\n This was a rear \/mid-engine sports-racing coupe. It\u2019s believed this machine was designed for the FIA Group 3 [3L, GT category]. The XP was again designed by Dennis Adams and possessed a wedge shape profile. The chassis remained stressed plywood monocoque based<\/p>\n It\u2019s believed that the first engine obtained was Repco-Brabham V8. This machine was not a competitive success and was not developed. Later a lower performance V8 was substituted and the car used on the road. It has survived.<\/p>\n It\u2019s possible that Marcos hoped to produce a run of these cars or that it was intended as donkey prior to producing a road sports car.<\/p>\n Adams believes his design was slightly compromised during construction.<\/p>\n Marcos 2L 1970-71 & 3 L, 2.5 L& 3L-Volvo: 1969-c 1971<\/strong><\/p>\nAdams shape 2 \u2013seat coupe with various engines. They were displayed at the 1969 Racing Car Show.<\/p>\n These models are variants of the steel tube cars and continued the \u201c1800\u201d Adams shape [2-seat coupe] but with steel tube chassis but adopted the Ford V4 ohv engine of 1966cc and<\/p>\n Ford V6, Volvo straight 6 and Triumph 2.5 L<\/p>\n Production numbers tell their own story but this needs to be related to the era \/ world economic events.<\/p>\n A brief summary specification of the 1969-71 3 L:-<\/p>\n Engine: Ford V6<\/p>\n Capacity: 2994 cc<\/p>\n Max power: 136 bhp @ 4750 rpm<\/p>\n Front suspension: coil and wishbone and anti roll bar<\/p>\n Rear suspension; live axle, coils upper and lower links, Panhard rod<\/p>\n Steering: rack and pinion<\/p>\n Dimensions<\/p>\n Length: 13\u2019-4.25\u201d<\/p>\n Width: 5\u2019-2.5\u201d<\/p>\n Height: 3\u2019-6.5\u201d<\/p>\n Fuel consumption averaged; 23 mpg<\/p>\n In 1969 Marcos advertised the 3L model in \u201cMotorSport\u201d they quoted from \u201cMotor\u201d April 1969 stating:-<\/p>\n \u201c Striking closed two-seater with tremendous punch , outstanding road holding very hard ride, but superb seats , well appointed\u2026\u2026.its full performance is impressive \u2026\u2026.\u201d<\/p>\n Marcos strap line was \u201cThree litre fireball \u2026\u2026..All you need is a Marcos\u201d<\/p>\n Mantis: 1971<\/strong><\/p>\nSee extended details below with comparison with 1970\u2019s Elite and Eclat.<\/p>\n Marcos since the 1980\u2019s<\/strong><\/p>\nThere is some merit in contrasting the Marcos with TVR [see A&R article].Both companies were in the specialist market and both adopted medium \u2013to large powerful engines. More recently the larger possibly to compete with mainstream supercars. In the Marcos case this has resulted in some loss of aesthetic refinement and general loss \/ dilution of character and possibly a marketing move towards a more butch and macho car. Of course export and markets might well also determine this along with the realities of engine availability.<\/p>\n 1983:<\/em><\/strong> Mantula [Rover V8 believed to be the 3.5 L engine giving estimated 190 bhp.engine upgraded with development. Weight distribution approximately 50\/50] Spyder, Martina<\/p>\n1990\u2019s:<\/em><\/strong> 1992 \/1994 LM 200 GT RS, 400,500,600; 1993 Mantara, 1996\/7 Mantis, [Ford V8] GTS, 1998 Mantaray<\/p>\n2000\u2019s <\/em><\/strong>2002.Marcasite<\/em>, 2004 TSO<\/p>\nMarcos at Le Mans<\/strong><\/p>\nWe have noted that both Lotus and Marcos competed at Le Mans.It\u2019s interesting perhaps that Marcos have entered at opposite ends of the engine capacity. Some of their early reputation was based on the Mini Marcos. The firm reestablished itself in the mid 1990\u2019s and enjoyed some success.<\/p>\n Marcos: Estimated Production No\u2019s<\/strong><\/p>\nThe editors do not have definitive figures and numbers vary from different sources. An attempt has been made to average and amalgamate these. We are happy to amend with information from reliable sources.<\/p>\n Model\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Year\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Production<\/p>\n GT\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1960-63\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 29<\/p>\n 1800\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1964-66\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 99<\/p>\n 1500\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1966-67\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 82<\/p>\n 1600\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1967-68\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 192<\/p>\n Mini Marcos\u00a0 1965-74\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 700 [possibly well over 1264 into 1995\u2019s]<\/p>\n 3L\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1969-71\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 80<\/p>\n 2.5L\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1971-\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 11<\/p>\n 3L-Volvo\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1970-71\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 250<\/p>\n 2L\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1970-71\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 40<\/p>\n Mantis\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1970-71\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 32<\/p>\n Deductions to be meaningful need to factor in considerations such as: general state of the economy \/ impact on buying public, the alternative competition and price. However they do provide insights and we will take this up when discussing finance.<\/p>\n Brief Company Histories and Design Methodologies<\/strong><\/p>\nLotus<\/em><\/strong><\/p>\nIt\u2019s not considered necessary here to recall Chapman \/ Lotus history in great detail. Much can be discovered by the comparison of commonality given above and in -depth analysis can be found in A&R articles:-<\/p>\n | | | | |