My buddy did his whole car with it last fall and its held up pretty well even with a NY winter. The edges around the wheel wells are coming up a bit, but its to be expected with out gravel and its a daily driven car/weekend drift car.
Lay it on thick, thicker than you think you should, it self levels pretty well, but always has texture to it no matter what you do, its just the nature of it. My buddy used 6 cans to a Lincoln MKIII to give an idea of thickness that seemed to hold up well. I did a set of car wheels white last summer, they didnt stay white very long, the brake dust go into the texture and never came out, i trued multiple cleaners and brushes. So, Ive your not doing black, you might be unhappy once she gets some road grime on her.