My only pet peeve with Show or Display cars is the battery cables. I know it sounds petty. What gets me is someone that spends $30K on body work, $20K on an engine and keeps the hacked off battery terminal repair from 1982. I get frustrated because a failure from this will strand you on the side of the road.
i hate those cable ends as well ! i have repaired so many electrical issues over the years caused by those things, i don't have hair on the top of my head now.
