Stop quibbling about a measly $500 bucks. If you want it, buy it. Otherwise you're just insulting the owner by trying to low-ball your offer. It's a sellers marketwhen it comes to sports cars produced in low numbers. Can you find another one anyplace near you in equal condition with 50,000 miles or less for $12,500? I did a quick search on Car Guru's and there are two available in Florida with less than 40k on the clock for about $13k with no accident history, but what would it cost you to go get one of those? A lot more than $500 I expect. Before you hand over any money, pay to take it to a Z car expert to give it a good prebuy inspection. It would be well worth the $150 it will cost if it keeps you from buying lemon. Also be sure to get a quote from your insurance company. If you are under age 25, it could be the straw that breaks the camels back, as the saying goes.