Cars facing a 747 backwash Mondeo and 2CV at Top Gear http://video.google.com/videoplay?docid=-1309610693318372088
http://video.google.com/videoplay?docid=-6654711021903277271&q=jetblast&pl=true Not the topgear one though
Facing the engine? It will just be pushed backwards. If they nailed it to the ground however to prevent it from moving, the suspention would be crushed and the car would bottom out on the runway.
They should have chosen a Honda with a huge spoiler so they could witness the incredible downforce they provide.