I vote based on a 7-10 scale.
7 = Probably stock and nothing special
8 = a few mods done, nothing major
9 = Lots of mods done and looks awesome, but still missing something
10 = It's everything I would like to do to my car :P
Delorant's car I gave a 10 because it's complete imo. Harry's car was missing some rims and it would have been a 9/10 easily :P