High Quality Content by WIKIPEDIA articles! Safir Engineering is a British racecar engineering firm. In 1975, they purchased the Token RJ02 Formula One car, renamed it the "Safir" and raced it in the 1975 Race of Champions and BRDC International Trophy. Later, Safir purchased the rights to the Ford GT40 and made continuation GT40s during the 1980s. Formula One cars race at high speeds, up to 360 km/h (220 mph) with engines revving up to a formula imposed limit of 18,000 rpm. The cars are capable of pulling in excess of 5 g on some corners. The performance of the cars is highly dependent on electronics (although traction control and driving aids have been banned since 2008), aerodynamics, suspension, and tyres.