As do I.

I guess it really kinda depends on the car he's got and how he feels about keeping it pristine. If the long awaited RWD sports car is a used car in less that pristine condition, probably no big loss. If it's a new car and the OP's baby, I wouldn't touch it with any trunk rack. Heck, I've driven home in conditions so nasty (roads and winds), my bike's been gusted and bopped around pretty good on a roof rack. I don't even want to think about how a trunk rack would have fared.