Ayrton Senna returned to Bell in 2002 and was incinerated while family members watched. His nephew Bruno wore a modified version of his helmet design (a yellow helmet with a green and blue stripe) during his Formula One career, but the stripes are shaped after an S rather than being straight, under the chin area it has a green stripe, and it has a blue rounded rectangle in the top area. Bruno sported a modified helmet design for the final three races of the 2011 season to honour the 20th anniversary of Ayrton winning his last world championship. At the 1995 Brazilian
Formula One many F1 drivers, with champions, including Nigel Mansell, Ayrton Senna and Mika Häkkinen having moved straight from that series to Formula One. More rarely a driver may be picked from an even lower level, as was the case with 2007 World Champion Kimi Räikkönen, who went straight from Formula Renault to F1, as well as Max Verstappen, who made his debut following a single season in European F3. 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