Hi Berkshires,

Personally I plan to get a hitch rack (once I buy a 2-inch hitch) because I don't want my paint scuffed and want easy plug-n-play capability, but to answer your question I have seen at least one Prius with a latch & strap type of bike rack, and surprisingly, it didn't look that bad and seemed to only make contact with the actual paint at the bottom of the hatch. Your bike would obscure most of your view out the back window, though.

Rick