The Ferrari F2003-GA was the car used by Scuderia Ferrari in the 2003 Formula 1 season, designed by Rory Byrne and Ross Brawn. Its development was based on the previous Ferrari F2002, and featured bulbous sidepods and a lengthened wheelbase to aid aerodynamics. The engine and gearbox were developed versions of the previous model.
The car was designated "GA" as a mark of respect to Gianni Agnelli, the recently deceased head of Fiat. The car was introduced just before mid season in 2003, as the F2002 was seen as good enough to be competitive whilst the F2003-GA was developed further. The car was fast and competitive, but had a tendency to overuse its tyres, which led to several late race tyre problems in mid seasons, during the unusually hot European summer.
Ferrari Racing 2003