I don't think that will be a problem. The true gull wing doors go really high, the ones that use the A-pillar as an axis don't go as high. I'm guessing a lot of parking structures are large enough for SUV's that rear door hinges up. Anyway, I'm 40 miles from the nearest parking structure, so I rarely park in them. But you are right, I would have to be careful, but the hinges I'm looking at stop at any point as long as the gas shocks are adjusted correctly.

Actually, I'm looking at don moore's victory in his sig above. It looks like he has the same pushbar.