FIA Super Licence
American open-wheel car racing has also contributed to the Formula One grid with mixed results. CART champions Mario Andretti and Jacques Villeneuve became F1 World Champions, while Juan Pablo Montoya won seven races in F1. Other CART (also known as ChampCar) champions, like Michael Andretti and Alessandro Zanardi won no races in F1. Other drivers have taken different paths to F1; Damon Hill raced motorbikes, and Michael Schumacher raced in sports cars, albeit after climbing through the junior single-seater ranks. Former F1 driver Paul di Resta raced in DTM until he was signed with Force India in 2011. To race, however, the driver must hold an FIA Super Licence–ensuring that the driver has the requisite skills, and will not be a danger to others. Some drivers have not had the licence when first signed to an F1 team: e.g., Räikkönen received the licence despite having only 23 car races to his credit.