FORMER grand prix winner David Coulthard, at 37 the oldest driver in Formula One, announced that he will retire at the end of the season.

"I would like to announce today my decision to retire from racing in Formula One at the end of this season," the Red Bull driver said in a statement at the British Grand Prix.

"I will remain actively involved in the sport as a consultant to Red Bull Racing focusing on testing and development of the cars."

"I have an open mind as to whether or not I will compete again in the future, in some other form of motorsport, so I am definitely not hanging up my helmet," added the Scot.

Coulthard said his decision to retire was taken earlier in the year and was based on "a desire to stop while I am still competitive and enjoying the immense challenge that Grand Prix driving represents."

The Scot has won 13 grands prix since his debut in 1994.