Ferguson Research went on in racing, supplying the Novi-powered P104 to the STP team for Indianapolis. In 1964 the Ferguson P99, by then fitted with a 2.5 litre Climax engine, was lent to Peter Westbury who used it to win the British Hillclimb Championship that year. Westbury built two 4WD sports racing cars cars, Felday 4, powered by a BRM V8 and Felday 5, powered by a 7-litre Holman Moody Ford V8. In 1964, Harry Ferguson research built a Novi-powered car for the Indianapolis 500 for Andy Granatelli's STP team, the 4WD Formula One BRM P67 car for BRM  in 1964, provided the 4WD system for the Lotus 56 turbine Indy car and 56B turbine Formula 1 car.