The Leyton House CG901 was a Formula One car designed by Leyton House for the 1990 Formula One season. It was designed by Adrian Newey and was driven by Maurício Gugelmin and Ivan Capelli.
The "CG" in the car's name stood for Cesare Gariboldi, a March team manager who died in a road accident in 1989.
The A-spec version of the CG901 had a poor performance, often failing to qualify for races two times. After the B-spec car was introduced, the results and performance improved for the team, and it even managed to get a podium spot at the French Grand Prix, done by Ivan Capelli.
Complete Formula One Results
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| Year | Driver | Tyre | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | |||
| 1990 | 
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 Gugelmin
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G | 14th | DNQ | Ret | DNQ | DNQ | DNQ | Ret | DNS | Ret | 8th | 6th | Ret | 12th | 8th | Ret | Ret | ||||
 Capelli
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Ret | DNQ | Ret | Ret | 10th | DNQ | 2nd | Ret | 7th | Ret | 7th | Ret | Ret | Ret | Ret | Ret | |||||