2. Alex Zanardi
Alex Zanardi is former Italian Formula 1 driver. His career in Formula1 was not particularly successful. He had more success in the CART championship where he was twice a champion.
Unfortunately, during one race in Germany, at Lausitzring, he suffered a serious accident. He had been leading few laps before the end. But, when he tried to get back on the track, he lost control of the vehicle. Patrick Carpentier, who was behind him, managed to miss him, but the Alex Tagliani hit right in the middle of his car.
Zanardi then lost three quarters of the total amount of blood and both legs were amputated. He then survived only thanks to the quick reaction of the medical team on the track.