The Formula F100 was a racing class in 1970 and 1971. The class was open to lightweight sports cars powered by a 1300cc engine (usually a
Ford Kent engine or 1300cc BMC engine).
History
The Formula F100 was launched by Geoff Clarke and the Motor Racing Stables racing school. Clarke also launched
Formula Ford and thought that Formula F100 could be the
sports car racing equivalent. The British press gave the F100 a far from warm welcome. The press feared the class would rival the popular
Clubmans.
The first season was dominated by
Ray Allen driving a
Royale RP4. The car was first powered by a
Ford Kent engine. But when
Nick Cole became the faster driver in a
BMC powered
Nerus Silhouette, Allen quickly changed engines. Former
Formula 1
Formula One (also known as Formula 1 or F1) is the highest class of international racing for open-wheel single-seater formula racing cars sanctioned by the Fédération Internationale de l'Automobile (FIA). The World Drivers' Championship, ...
driver
Les Leston came out of retirement to race in the series. The 49-year-old Briton was competitive towards the end of the season. The season started slow with few car counts, but at the end of the season there were 12 cars on the grid. The 1971 season was dominated by
Tom Pryce. The young talent won eight of the 20 races. The series' final race at
Brands Hatch on December 27, 1971 proved to be a farce as only one driver made the grid. The class eventually folded and the very popular Clubmans class prevailed.
Cars

The lightweight sports cars were built by various manufacturers. The
Royale RP4,
Merlyn
Merlin ( cy, Myrddin, kw, Marzhin, br, Merzhin) is a mythical figure prominently featured in the legend of King Arthur and best known as a mage, with several other main roles. His usual depiction, based on an amalgamation of historic and leg ...
MK 16,
Aldon F100 and the
Nerus Silhouette are examples of Formula F100 cars. Cars were fitted with a 1.300cc
Ford Kent Crossflow engine. The engine was derived of the
Formula Ford 1600. Despite the 300cc smaller engine, the cars were only slightly slower than Formula Ford due to their superior aerodynamics. All cars were fitted with spec
Hewland transmission and
Firestone tyres.
Champions
References
{{reflist
Formula racing
Formula racing series
Sports car racing series
Recurring sporting events established in 1970
Auto racing series in the United Kingdom