Robert Kubica said his triumph at the 24 Hours of Le Mans on Sunday, 14 years after a near-fatal rally crash that partially severed his right forearm, should erase any doubts about his capacity to compete in motor racing.

By any normal yardstick, the Le Mans 24 Hours is one of the most difficult and demanding races in motorsport.The concentration levels alone are virtually impossible to uphold, on public roads at more than 200mph,

Ferrari has won the 24 Hours of Le Mans for the third year running but a late surge from Porsche Penske Motorsport denied the Italian manufacturer a podium sweep.