Jenson Button will find out if his car is legal when world motorsport’s governing body, the FIA, makes a final ruling on the diffuser row on Tuesday.
The Formula 1 championship leader’s Brawn Grand Prix team, Toyota and Williams use a split-level diffuser.
The FIA rejected a protest by rival teams who argue the design does not conform to the new 2009 regulations.
But the International Court of Appeal will rule on the issue and could deduct points from Brawn, Toyota and Williams.
An independent panel will hear arguments from both sides in Paris on Tuesday, with a verdict expected the following day…Â Details