The FIA's International Court of Appeal has rejected McLaren's case over the fuel temperatures of the BMW and Williams cars in last month's Brazilian Grand Prix.
After a day of deliberation, having heard all sides yesterday in a London location, the ICA said the results of the Interlagos race will remain unchanged, confirming Ferrari's Kimi Raikkonen as the 2007 world champion.
The governing body said in a statement the case was rejected because McLaren's appeal is inadmissable.
The International Court of Appeal was presided over four judges from the Czech Republic, United States, Greece and Portugal.
The full statement by the FIA:
"The FIA International Court of Appeal met in London on Thursday, November 15, 2007, to examine an appeal lodged by the Motor Sports Association (MSA) on behalf of its licence-holder Vodafone McLaren Mercedes against the decision (document 41) of the Panel of the Stewards of the 2007 Brazilian Grand Prix dated 21 October 2007 and counting towards the 2007 FIA Formula One World Championship.
"Following a report from the Technical Delegate indicating that the temperature of fuel pumped into the cars N°9 - Nick Heidfeld, N°10 - Robert Kubica, N°16 - Nico Rosberg and N°17 - Kazuki Nakajima, was more than 10 degrees centigrade below ambient temperature, the Stewards of the Meeting met to consider whether a penalty should be imposed.
"Having heard the evidence they decided not to impose a penalty as they had sufficient doubt as to both the temperature of the fuel on board the car and to the true ambient temperature.
"Having heard the explanations of both parties and having examined the various documents and other evidence, the Court decided that the appeal lodged by Vodafone McLaren Mercedes is inadmissible.
"The International Court of Appeal was presided over by Mr Jan STOVICEK (Czech Republic), elected President, and composed of Mr John CASSIDY (United States), Mr Vassilis KOUSSIS (Greece) and Mr José MACEDO e CUNHA (Portugal)."