Can anyone recommend a decent bike rack for the Tig? I don't have a towbar/hitch, so I'm thinking of one of those ones that straps across the tailgate. I've never used one before though. Obviously, I don't want the rack to leave any wear marks on the car.

For what it's worth, I tried putting the seats down yesterday and loading my bike in but it didn't quite fit (would have if I took off the front wheel), and it was hard enough trying to get one bike in, let alone a second. I was also worried about scratching the interior.