Toilet Paper Cruiser is a definite for the list. Any Chevelle, Pontiac GTO, Anything made by Pontiac, save a few select TAs.
I was also happy to see the Element on the list. When they first came out, I saw revelers at the auto show checking one out. So ugly. I remember being pretty vocal about how ugly it was and ruffling some feathers.
Prius...I'm not even going to say it.