De 1991 United States Grand Prix werd gewonnnen door Ayrton Senna van McLaren.
De race in United States of America was ronde 1 van 16 van het 1991 seizoen.
The 1991 United States Grand Prix (formally the XXVIII Iceberg United States Grand Prix) motor was a Formula One race held on March 10, 1991, in Phoenix, Arizona. It was the first round of the 1991 Formula One season. The 81-lap race was won by Ayrton Senna, driving a McLaren-Honda, after he started from pole position. Alain Prost finished second in a Ferrari, with Nelson Piquet third in a Benetton-Ford. It was also the first Formula One race for future double World Champion Mika Häkkinen.
bron: Wikipedia
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