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It's always a Ferrari causing the big LMP1 crashes... :hiding:
really though, once the Toyota's wheels left the ground after the initial contact, the freestream flow under the car picked it up and probably caused a loss of all ground effect from the underbody aero. If you watch closely, the right side wheels never regained contact with the ground after the initial impact. as the car got more and more sideways with the right wheels in the air, the freestream flow under the car combined with the angle of the underbody to produce an upward force component that increases with the roll angle and eventually launched the car into the air.
The dorsal fin only works if the car keeps all four wheels mostly planted on the ground. Once you get a large, flat underbody away from the pavement and facing a high velocity flow, there isn't much you can do to keep from going airborne.
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