BMW and Williams' fuel temperature under investigation

The FIA confirmed after the Brazilian Grand Prix that BMW Sauber and Williams were under investigation as the fuel temperatures of the cars were outside the regulations. Article 6.5.5 of the Formula One technical regulations states: "No fuel on board the car may be more than ten degrees centigrade below ambient temperature."

The statement issued by technical delegate Jo Bauer showed that Heidfeld's fuel was 13 degrees centigrade lower than ambient at his first stop and 12 degrees centigrade lower at his second stop. Robert Kubica's fuel varied by 14 degrees, 13 degrees and 13 degrees at his three stops; Nico Rosberg's fuel was 13 degrees and 12 degrees out at his two stops and Kazuki Nakajima's was 12 degrees out at his first stop. His second stop was inside the 10-degree limit.

If the drivers would be disqualified from the race, Lewis Hamilton would move up to the 4th place and in that case he would be crowned Champion.