The mileage will not mean much. If it was less than 30K or some really low number, than that brings added value. The real adder is the no rust. Watching many auctions and CL ads it seems more and more people are asking upwards of $25k to $40k for these cars. Does the A/C still work? All the electrical works well? Drives smooth? Nothing like having a prospective buyer come by and you reach in and crank the car and it fires right up! Tires over half the tread still available and they look soft (not dry and cracked)?
It is about presentation and then if the car is rust free, do not be shy about having a buyer crawl under the car and delve into the trunk and under the carpet! Do not feel obligated to sell cheap, but do not be offended if someone offers you cheap. Afterall, buyers want to buy low and sellers want to sell high, negotiate. Enjoy.
Edit: Just to clarify, I think you could get $8k to $10k if the car is in great shape. I was only mentioning how the asking price is sometimes astronomical because the owner thinks low mileage is 66,000.
