Rubens Barrichello hit out at the Brawn GP squad after what he described as "a good show of how to lose a race," during the German Grand Prix.
The veteran Brazilian led the opening stint of the race, but fell back to finish sixth after Brawn elected to put both he and his team-mate Jenson Button on three-stop strategies compared to the two stops employed by the top four finishers.
"I'm terribly upset with the way things have gone today," Barrichello told BBC TV. "Because it was a very good show of how to lose a race.
"I did everything I had to do. I had to go first into the first corner, and that's what I did.
"Then they [Brawn] made me lose the race basically. If we keep going on like this, then we'll end up losing both championships, and that would be terrible."
Despite the three-stop strategy proving the wrong choice at the Nurburgring, Barrichello would likely still have finished fourth had his pit crew not been forced to switch to his reserve fuel rig at his second stop, after the first malfunctioned.
"To be honest, I wish I could just get on a plane and go home now. I don't want to talk to anyone in the team, because it would be a lot of bla, bla, bla, bla... And I don't want to hear that. I'm just terribly upset."
Barrichello's result dropped him from second to fourth place in the championship, behind the Red Bulls of Mark Webber and Sebastian Vettel, which dominated the race.