MONZA, Italy: German Sebastian Vettel on Sunday won the Italian Grand Prix in treacherous wet conditions to become the youngest race winner in Formula One history.

The 21-year-old led all the way from the lights to the checkered flag to give his Toro Rosso team the greatest day in their history.

"I don't know what to say but this is just unbelievable. I feel so happy for me, for my family and the team," Vettel said.