Sao Paulo: Lewis Hamilton's rollercoaster season ended in disappointment when a gearbox problem forced him into retirement at the Brazilian Grand Prix.
The 2008 world champion pulled his Mclaren off to the side of the Interlagos track on the 48th lap.
"I think it's been an interesting year. Today, I gave it my all. I enjoyed the race and it's a little bit unfortunate that we weren't able to get extra points," Hamilton told the BBC.