Red Bull Formula One driver Mark Webber is to quit the sport at the end of this season.

The Australian is to race sports cars for Porsche at events such as the Le Mans 24 hours.

Webber had a high profile argument with his Red Bull team-mate Sebastian Vettel, after the German driver ignored team orders and passed the Aussie at the Malaysian GP.

Previously, the 36-year-old drove for Minardi, Jaguar and Williams before linking up with Red Bull in 2007. His best championship finishes came in 2010 and 2011 when he third in the standings.

Before this weekend's British Grand Prix, he has amassed nine career wins and 36 podium finishes.