Marie: Trevor, is someone chasing you?
Trevor Reznik: Not yet. But they will when they find out who I am.
When Trevor is struck by the VW Beetle, not only is he not thrown forward along the Beetle's path, he actually lands well behind the point of impact - more than half the length of the parked van. He doesn't bounce off another object that changes his direction. He's just thrown up, then falls rearward above the car.