The Clan Crusader is a fibreglass monocoque sports two-seater, powered by the Rootes Imp Sport engine, with suspension and main running gear from the same manufacturer.

The Crusader was originally conceived by a group of Lotus engineers in the late '60s. Paul Haussauer formed the Clan Motor Company and developed a prototype vehicle with the assistance of Brian Luff. The styling for the Crusader was by John Frayling.

Initial production of the first few cars started in a nursery factory in Washington, Tyne-and-Wear. They were completed and registered by July 1971. A purpose built factory unit was leased, taking advantage of government grants designed to improve employment in the area.

By the official start of production, in September 1971, five cars a week were being produced. This continued despite the coal miners' strike the next winter, the knock on effect of which caused supply problems. This prevented, to some extent, the growth of production, the factory being capable of four times this throughput.

Approximately 350 cars were built by Clan Motor Company including 19 specifically for competiton use. Some at the beginning being sold in component form, i.e. bodyshell fully trimmed, all wiring, glass and piping fitted. (in the same way as Lotus Elans) to beat the 25% purchase tax. With the advent of VAT, component kits were dropped. In May 1972 the Crusader was successfully crash tested at M.I.R.A.

Production ceased in late 1973 due to the company's financial difficulties, even though sales were still good. Several finished and part-finished cars were sold after the company's closure.