Sebastian Vettel overcame a first-lap crash to clinch his third straight Formula One championship title
Vettel finishing sixth in an incident-filled Brazilian Grand Prix won by Jenson Button.
The German did what he needed to hold off Ferrari's Fernando Alonso, the only other driver contending for the title, and became the youngest three-time champion in Formula One at age 25.
Alonso had a superb start on a hectic first lap at Interlagos and finished second, but that wasn't enough to erase Vettel's lead in the standings.
Lewis Hamilton was leading in his final race with McLaren when Nico Hulkenberg crashed into him while trying to make a pass on a slippery track with 17 laps to go.
Michael Schumacher, F1's most successful driver, finished seventh in his final race after 19 seasons.
The race finished behind the safety car after Paul Di Resta crashed.