Career
Following Brabham"s retirement as a driver at the end of the 1970 season, Tauranac owned and managed the Brabham team through 1971, but sold it the following year to Bernie Ecclestone. He remained in England to assist with a redesign of a Politoys Formula One chassis for Frank Williams in 1973 and helped Trojan develop a Formula One version of their Formula 5000 car. The first "modern" Ralt was the Ralt RT1 chassis, to be raced in Formula Three, Formula Two and Formula Atlantic.
The chassis proved successful, winning the European Formula Three championship in 1975 in the hands of Australian driver Larry Perkins.
The 1978 season also proved successful for the RT1 chassis, winning the European F3 championship for January Lammers. Tauranac designed the Theodore Racing F1 car for the 1978 season.
Two new designs were created for the 1979 season: the RT2 for Formula Two and the RT3 for Formula Three. In October 1988, Tauranac sold the Ralt business to March Engineering for £1.25 million.
Tauranac has remained involved with various aspects of the sport since departing from Ralt, including racing-school cars for Honda, a Formula Renault car, consulting work for the Arrows Formula One team, and continuing his relationship with Honda that goes back to their early Formula Two days as engine supplier to Brabham in the 1960s.
He has moved back to Australia but retains an interest in the sport. Tauranac can be seen each year as a design judge at the Formula Society of Automotive Engineers Australasia competition in Melbourne, Australia.