I'm expecting a little flack for this post but in my eyes the Ghost Busters car is a celebrity car by itself.
Here is all I know about it:
For sale: 1959 Cadillac with 100,000 miles.
Previous owners: Dr. Peter Venkman, Dr. Raymond Stantz, Dr. Egon Spengler. Features include new tires, room for three unlicensed nuclear accelerators, customized logo on the side ... oh, and room to store up to a dozen ectoplasmic entities.