F1 (and incidentally the last race won by Moss in Europe), with the technology banned in 1983. Despite its promising beginnings this front-engined car was soon made obsolete by mid-engined cars. 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, 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. Ferguson Formula 4WD Soon after Ferguson's death, his son-in-law Tony Sheldon took over the chairmanship of Harry Ferguson Research and changed the company policy to one of developing 4WD systems that could be adopted by car makers for their own models. Jensen Motors took up the idea, stretching the Interceptor by 5 in (130 mm) to create the FF (for Ferguson Formula, Ferguson's term for 4WD). It appeared in 1966. The high cost of its hand-built 4WD system kept it from being a commercial success. The company also converted a number of Ford Mustangs to 4WD with the aim of getting Ford in the USA to make them as a production model. In 1969 the company converted a fleet of Ford Zephyr MkIV police vehicles for assessment by the UK government, with interests in possible military use. In 1968, GKN took a stake in the company, with the intention of mass-producing 4WD systems for production cars. The first company to be interested was Ford of Britain, who. examined the idea of a 4WD Capri. Production issues prevented a 3-litre 4WD model from being manufactured. In 1969, there was a 4WD boom in F1 with the top teams of the era, with Matra, Lotus and McLaren, building 4WD cars. Only Matra used the Ferguson system. (Cosworth also built a 4WD car but using their own system). The 1968 seasons had seen many wet races and the constructors were searching for means to increase the grip of the cars. The 1969 British Grand Prix,