First Engine Failure for Coulthard

"That's the first engine failure we've had since December," said Coulthard, who retired from the race on lap 19 when his Cosworth engine failed.

"We have to accept that these engines are stressed and occasionally one will have a fault; but obviously it's too early to know what exactly caused it," added the Red Bull driver.

The Scot, however, was already out of contention after his team decided to switch to dry-weather tyres when the track was still wet, a gamble that didn't pay off.

The same happened to teammate Christian Klien, who was at least able to complete the race and finish in ninth place.

"My start was really good and I made up three places on the first two laps," said Klien. "The track was wet, but as it was drying we changed to slick tyres when the safety car came out. However two laps later, I came back in and changed back to the intermediate tyres.

"The car was too uncontrollable on slicks on the damp surface and basically, we changed too early. I went back to slick tyres at the end of the race when the track was drier and ended up in ninth place. It's pretty disappointing as without mistakes, we could have easily scored some points here."