Small thing that irratates you about your car
I've got a few off the top of my head.
1. previous owner did a 340 clone w/o an actual 340.(no one would ever casually notice, but it bothers me)
2. Its an automatic(gotta be able to slam gears or else it gets boring)
3. It's a restoration project that i bought 75% finished.(not as much wrenching to do)