750 Formula is a British racing formula invented and regulated by the 750 Motor Club, designed originally for a two seater sports/racers powered by the 750cc Austin Seven engine and the Seven chassis. Racing under the original formula regulations continues as a form of historic racing in the 750 Motor Club 750 Trophy Series.
With engine supplies running thin, the Reliant engine was introduced to replace the Austin 750cc engine and in 2003 it was replaced with the 1108cc version of the Fiat FIRE engine. The formula thrives today with a 14 round championship which is closely contested with grids of over 20 cars. 750 Formula is believed to be the most cost-effective way to race today with a competitive season of racing costing around £3,000 to £4,000 inclusive of entry fees, running costs and travel and accommodation.
In addition to being the world's longest running formula, it continues to thrive as an outlet for amateur constructor/drivers to hone their craft.
- Stephens, P. J., Building and racing my "750", G. T. Foulis & Co, London, 1953.
- Peter Herbert, Dick Harvey, (1996). Everything You Need to Know About Building and Racing a 750 Formula Sports-racing Car. J H Haynes & Co Ltd. ISBN 1-85260-447-6
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