Funny how I saw the title to this thread and I was going to suggest going to a government auction.
If you are anywhere near MA, shoot me a PM, I have inside connections at the state auctions there. When I lived there, I used to buy old cruisers like crazy, fix them up, and resell them on eBay. Your $4K will go a long, long way at an auction. Not even a pristine, year-old Euro sedan will cost you $4K in MA, heck I see nearly-new unmarked CVPIs go for $1500 all day long, or anything 4x4 nearly new for just a little more $. Figure you will pay 10 to 15% of book value.
The most expensive vehicle sale I've ever seen at a MA auction, and I've been going to them for almost 20 years, was a drug-dealer seizure Ferrari, it was about 7 years old but looked new, for $5000.