[NYNick]

The seller was misleading; that's pretty clear. You didn't do your due diligence; also clear. This sounds like the kind of car sale that's what I call a "taillight warranty". As soon as the taillight disappears, the warranty expires. Not exactly an upfront representation of the car. He left all those details out on purpose and you swallowed it hook, line and sinker. At least you didn't take delivery!

I have no problem telling the guy the car wasn't represented accurately and fairly and that you want your deposit back. Tell him reviews on the internet can be important. If he's still radio silent at that point, out him, but don't make it a vendetta. You were at fault too.