Lewis Hamilton said he was disappointed that Nico Hulkenberg did not apologise for their collision which put him out of the Brazilian Grand Prix.
Hamilton and Hulkenberg were battling each other for the lead when the Force India driver spun and hit the McLaren at Turn 1, forcing Hamilton out of his final race before switching to Mercedes for 2013.
Hulkenberg was given a drive-through penalty for causing a collision, but went on to finish fifth while Jenson Button - who was third at the time of the incident - went on to win.
"It was a little bit unfortunate," said Hamilton. "The dude didn't even say sorry. So that says a lot.
"That's what happens when you race with the less experienced. I feel OK, and I feel happy for the team to get the win."
Hamilton added that he had mixed feelings now that his time racing for McLaren has come to an end.
"I feel a little bit like 2007," he said in reference to the championship he lost to Kimi Raikkonen at the final race. "I feel a little bit numb.
"It's mixed emotions at the moment. We were leading and we didn't get to see through the race. I always like to see through the race.
"Then, I'm also excited for the future. Having a new start next year and then hopefully, at some stage, I'll have a little bit of luck."