either one of the last pontiac v6s, a trans am firebird (KITT).
I dont know. Something thats average, I can get parts for if something goes wrong without paying an arm and a leg, and is good with 87 gas.
EDIT: Alot of people are saying that they'd resell a car. Values of cars decrease significantly, and the people that will be these stupidly expensive car dont want it if its been owned by another person. They want new, off the line. Not second hand. So you'll take a hit.
hell, Most cars alone brand new, can take up to a 30% price drop when you drive it off the lot after owning. Plus you have to consider there's going to be title transfer fees that the person buying is going to have to pay, so you're not going to get 100% back.