His career in Formula One spanned 15 seasons, with his final two full seasons of top-level racing being spent in the CART series. Mansell remains the most successful British Formula One driver of all-time in terms of race wins with 31 victories, and is fourth overall on the Formula One race winners list behind Michael Schumacher, Alain Prost, and Ayrton Senna. He was rated in the top 10 Formula One drivers of all time by Murray Walker, who was a Formula One commentator for 50 years. In 2008, American sports television network ESPN ranked him 24th on their top drivers of all-time.