Inquiry casts doubt on F1 title
Kimi Raikkonen's world title has been thrown into doubt following an inquiry into the cars of BMW Sauber and Williams at the Brazilian Grand Prix.
Race stewards are investigating alleged irregularites with the cars' fuel.
Williams's Nico Rosberg was fourth in the race, followed by BMW Sauber's Robert Kubica and Nick Heidfeld.
If they were disqualified, McLaren driver Lewis Hamilton would be promoted to fourth, giving him enough points to displace Raikkonen as world champion.
The 22-year-old Englishman went into the race leading the title chase, but finished only seventh after a series of problems.
He dropped down to eight on the first lap after running off the road trying to pass team-mate Fernando Alonso.
And then on lap eight he dropped to the tail of the field when his gearbox slipped into neutral, costing him 40 seconds before it started to work again.
Raikkonen led home team-mate Felipe Massa in a Ferrari one-two to clinch the title by one point from Hamilton.
Alonso finished on the same points as Hamilton, but the Spaniard was classified as third on countback.
More to follow.