The beginning of the end for the Cooper Car Company was in 1969, as it tried, and failed, to find sponsorship for a new Cosworth DFV-powered car and there were many redundancies. Frank Boyles was the last to leave, since he was in charge of building customer cars and it had been hoped that some more F2 cars would be sold. Frank went on to design and build a Formula Ford car called the Oscar and also a series of Oval Circuit cars known as Fireballs. Driving the rear-engine version of this car, Frank won more than 200 races during a period up until 1975 in a car he had designed and raced himself. This record is believed to have never been beaten.