[Unobtanium-inc]

As a seller of cars on ebay I have to say I find it very annoying when a car sits on ebay all week, no questions, no PPI's, etc. Then it sells and the buyer starts asking questions and requests a PPI. The time to due your research and ask questions is when you are thinking about buying something, not after you bought it. Bidding and winning a car does not get you an appointment to hold the car while you think about it, if you commit to buy it, you should be prepared to buy it, within the time frame laid out in the auction. Because when you win an auction and then decide you don't want the car it makes it much harder for the seller to re-sell the car. If he puts it back on ebay everyone thinks there is something wrong with it, even if there isn't, many times its that the buyer didn't even read the auction. I once had a guy win a car and ask if he could fly in and drive it home, the engine was clearly out of the car in the auction, he just didn't read the auction or look at the pics.
Bottom line, if you're not ready to buy cars on the internet and abide by the terms of the auction, don't attempt to buy cars on the internet, find cars that are local and go look at them.
In this case it sounds like the seller was not forthcoming in his description but all of these questions could have been asked and answered before you won the auction, so to answer your question, you are the jerk, you are breaking the contract you agreed to, it's that simple. You had plenty of time to research the car before you committed to buy it.

---Adam