This years gumball has been cancelled after the death of a civilian and his wife
http://www.autoblog.com/2007/05/04/a-matter-of-time-one-killed-one-injured-gumball-cancelled/
The two britons involved in the crash apparently fled the scene of the accident and were arrested on the border. The details seem to remain sketchy, but if that is the whole story thats pretty cold to get it a huge accident and just bail.
Also here is a gallery of the start from London:
http://www.supercars.net/gallery/119513/1306/1.html