Used this on both a small hatchback and a larger SUV for cross-country driving. I have read other posts regarding the issue with new minivans and not being able to lock it into the top of the read door which is true. If I recall correctly I did wrap an old towel around part of the rack so that the metal did not rub against the car or scratch it. Was annoyed with the trouble, but am happy enough now. The top of the rear door is typically plastic and will break if loading any significant weight.