1981 Williams FW07C/D

This car competed in the Grand Prix Masters F1 Cars 1966-1985 race at the Silverstone Classic meeting in July 2010.

It's Roy Walzer's Williams FW07C/D, the final version of the FW07 model and is chassis FW07D/16. The Williams FW07 had the 2,993 V8 Ford Cosworth DFV engine and was designed by Patrick Head, Frank Dernie and Neil Oatley. It competed in the 1979 season finishing in second place in the World Constructors' Championship, Alan Jones winning four races and ending the season in third place in the World Drivers' Championship, while Clay Regazzoni won one race and with a further four podium places finished in fifth place in that Championship. In 1980 Alan Jones won the World Driver's Championship in the FW07 and Carlos Reutemann was in third place, second being Nelson Piquet in the Brabham BT49. Williams won the World Constructors' Championship that year. In 1981 Carlos Reutemann and Alan Jones finished in second and third places with the FW07C in the World Drivers' Championship which was won by Nelson Piquet in his Brabham. For the 1982 season, it was upgraded to FW07D specification using some components developed for the new FW08 and was raced twice by Carlos Reutemann with a second as the best result, and once by Mario Andretti, who retired from the US Grand Prix West at Long Beach.