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Lotus Mark VIII: Wikis


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The Lotus Mark VIII car was Colin Chapman’s first fully enclosed aerodynamic design. Chapman's basic requirements for the design were for a car of 1100 lbs powered by an 85 hp engine and a maximum speed of 125 mph. Work began on this design in January 1954, and Chapman was assisted in the design of the body by the aerodynamicist Frank Costin who was the brother of Mike Costin his main collaborator.

The space frame for the Mark VIII has been described as “the most nearly perfect sports car chassis”. Extremely light (the total weight of the frame alone was only 35 lbs) and very stiff, the frame consisted of only nineteen members and was fully triangulated. But from a practical point, however, the frame had limitations, mostly in maintenance. In order to install the engine, it had to disassembled and then reassembled inside the framework.

The space frame retained the divided front axle independent suspension that Chapman had used on his earlier cars, with a de Dion layout with inboard brakes at the rear. A modified MG 1500 cc engine and transmission were installed, and a stressed undertray further stiffened the chassis.

In its first race at Oulton Park, Chapman set the fastest lap of the day in Mark VIII prototype which was designated P3, but had to retire because of a blown head gasket. However, at the next race at Silverstone, Chapman won the 1,500 cc. class outright. It was at a subsequent meeting of the RAC British Grand Prix at Silverstone on 17th July 1954, where the reputation of Lotus cars was made as Chapman in the Lotus Mark VIII and Peter Gammon in the Mark VI beat the works quad-cam Porsche driven by Hans Herrmann again winning the class.

The Mark VIII was a precursor to the later aerodynamic cars that would follow.


  • Costin, Michael and Phipps, David, Racing and Sports Car Chassis Design , 1962, Robert Bentley, Inc. pp. 26-29.
  • Tipler, John, Lotus and Caterham Seven: Racers for the Road The Crowood Press, 1995. pp. 16-17.
  • Coulter, Jeremy, The Lotus & Caterham Seven: A Collector's Guide Motor Racing Publications, 1986. p 10.
  • "The Lotus Story" Cars Illustrated, 1964, Reprinted in "Lotus Sports Racers" Unique Motor Books, Hockley Essex England p165-168.


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