Martin Whitmarsh, Chief Operating Officer for McLaren Group, arrives at the offices of law firm Sidley Austin in central London, 15 November 2007. A decision at the appeal hearing, launched by Formula One team McLaren-Mercedes against Williams and BMW Sauber, is expected on Friday, world motorsports governing body FIA said. McLaren are appealing against the BMW Sauber and Williams teams for their use of allegedly irregular fuel during last month's Brazilian Grand Prix, the final race of the season where Ferrari's Kimi Raikkonen clinched the drivers' title. AFP PHOTO/SHAUN CURRY (Photo credit should read SHAUN CURRY/AFP/Getty Images)