Red Bull Racing's David Coulthard apologised to Williams rival Alex Wurz after putting both out of the Australian Grand Prix.
The Scot crashed into Wurz with 10 laps of the race to go, in a move that Coulthard admitted was over-optimistic.
"I tried to have a go down the inside of Alex Wurz's car at turn three, but I was too far back and screwed it up," said Coulthard.
"I went for the pass, but it was over-optimistic on my part. The collision was my fault, not Alex's, so apologies to him for that."
Wurz accepted Coulthard's apology, although he was disappointed after failing to finish.
"After his second stop, I was aware that David was close behind me on the track," he said. "Suddenly I felt an impact and the next thing I knew, I was his landing pad as the impact had sent him airborne over my car.
"It looked pretty spectacular, but I'm fine. It's a shame my race ended the way it did, as soon as we got back to the paddock David came to apologise to me and he was a gentleman about the incident."
Coulthard's teammate Mark Webber completed a poor day for Red Bull, after the Australian's hopes of scoring points in his home race went up in smoke after he struggled for pace during the race.
Webber, who had started from seventh position, finished down in 13th.
"It was tough race today, the first pitstop didn't go very well and when I went back out, I was having trouble maintaining my speed going into the corners," said Webber. "I wasn't able to get the pace back that I'd had in the first stint, which was very frustrating.
"Nothing really went right today, but that's the game we're in, some days give you a good feeling and the next day it isn't so easy."