Here is the clip from a few years ago when the Mercedes turned into an airplane in the 24 of le mans (ITS THIS WEEKEND BTW!) http://youtube.com/watch?v=rQbgSe9S54I
There was also a Porsche LMP that did a complete back flip landing on his wheels at Road Atlanta during one of the first Petite Le Mans races
Yeah, the 'bump' (or hill) under the bridge at 8 had to be reduced after that, as well as adding the chicane at 10.