Hamilton swaps F1 for Nascar

McLaren's Lewis Hamilton and Nascar champion Tony Stewart try out each other's cars at Watkins Glen in New York.

The 26-year-old Englishman admits he was impressed with the handling of the car and reveals he would one day like to race in the American series.

Stewart says he was pleased he did not have the chance to drive a Formula 1 car earlier in his career as he would have had a tough choice choosing between the two disciplines.

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