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From Wikipedia, the free encyclopedia

Lotus Mark VI
Chris Rea driving Lotus 6 at the Goodwood Revival 2009.jpg
ManufacturerLotus Cars
DesignerColin Chapman
Body and chassis
ClassSports car
Body styleRoadster
RelatedFord Prefect
EngineFord side valve 1172 cc
Transmission3-speed manual
SuccessorLotus Seven

The Lotus Mark VI is the first production car by Lotus Cars. It was introduced by Colin Chapman in 1952 after previously building multiple trials and road racing cars. The heart of the Mark VI is a space frame chassis. Rather than a complete car, it was available to the general public as kit, wherein the customer could install any preferred engine and gearbox, making it eligible for a wider number of formulae.


The Mark VI in many ways reflected Chapman's background in engineering: his designs resulted from a stress analysis of loads into the frame, they were extremely light (the 6' space frame weighed only 55 lbs (25 kg)), and the suspension incorporated the latest advances. The prototype chassis was built up by the Progress Chassis Company and the aluminium body was constructed by panel beaters Williams and Prichard. (Both firms would later furnish bodies and chassis for subsequent models.) The cheap and easily available mechanical parts were sourced from the Ford Prefect. The Mark VI became a popular sight on Britain's racetracks, and was a frequent winner, beating many more powerful and expensive cars, earning praise for very good handling and superior low-speed acceleration.[1]

An important facet of the success of the kit was Chapman's offering a comprehensive package in the Mark VI, including most of the special parts needed, and not just the chassis. The Mark VI chassis came with mounting points for several different engines including the 1172 cc (71.5ci) Ford 10, the 1250 cc or 1500 cc MG TF, the 1500 cc (92 ci) Consul, and the exalted Coventry Climax. Standardized as far as possible for volume production, some units were customized per the owners wishes. Lotus even modified the owner's parts, if needed. The success of the Mark VI in competition and sales (100 built by 1955[2]) established Chapman as a manufacturer of specialty cars.


Number built: approximately 110
Weight: 432 kg (952 lb)


Engine: Ford E93A straight 4
Engine location: front, longitudinally mounted
Displacement: 1172 cc / 71.5 in³
Valvetrain: 2 valves per cylinder, sidevalve
Fuel feed: SU carburettors
Aspiration: naturally aspirated
Gearbox: Ford 3-speed manual
Drive: rear wheel drive


Power: 50 bhp / 37 kW at 5000 rpm
Torque: 77 Nm / 57 ft·lbf at 3000 rpm
BHP/litre: 43 bhp / litre (0.7 hp/ci)
Power-to-weight ratio: 0.12 bhp / kg
0-60 mph: 15.0 s
Top speed: 150 km/h (93 mph)


  1. ^ Setright, L.J.K, "Lotus: The golden mean", in Northey, Tom, ed. World of Automobiles (London: Orbis, 1974), Volume 11, p.1223.
  2. ^ Setright, p.1223.


  • William Taylor, The Lotus Book: The Complete History of Lotus Cars Coterie Press, Limited.1998, pp. 20–21.

External links

This page was last edited on 8 May 2020, at 14:07
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