Mark Webber has been involved in a high-speed crash in a World Endurance Championship race in Brazil.

In the final race of the season, Webber’s Porsche collided with Ferrari competitor Matteo Cressoni on a 300kph curve.

The Australian had qualified in pole position for the endurance event but crashed with less than 30 minutes left in the six-hour Sao Paulo race.

Webber’s Porsche burst into flames before crashing into a concrete wall on the right of the track, pinging back into the opposite barrier and sliding to rest near the pit lane.

But the former Red Bull Formula One driver gave a thumbs up and wave to the crowd as he was stretchered away from his car, which had been totally demolished in the crash.

Webber was taken by ambulance to the circuit’s medical centre.

“Mark Webber is reported to be awake and alert and taken to the circuit’s medical centre for further examination. Matteo Cressoni was examined at the side of the track and did not go to the Medical Centre,” the FIA World Endurance Championship said in a statement.

Cressoni was checked trackside but did not require further examination.

The 6 Hours of Sao Paulo ended behind the safety car and was won by the Porsche of Neel Jani.

Source: AAP/ABC