Also in the first and third pics posted I will tell you this...

First shot was taken with the car moving at about 5 mph (if memory serves me right) and the cleaning up of the rig took the shooter quite a bit of PS work to get fully cleaned. I remember the first time the shot was posted by the shooter. Also shot with a wideangle lens (12mm if I remember) which accounts for the mild fisheye type distortion making the car seem bowed and giving it a more flowing effect.

Third shot was taken with , my guess is a 15mm lens with the rig hanging off the front right of the car and about a foot or so off the ground (risky shot). Vehicle again was most likely only moving at 5mph or so with a drag on the shutter and the rig later chopped out.