They are the worst rip-off with worse cars then a buy here pay here. They are so bad it has literally killed e-bay, brought out phishiners with paypal, (like it was safe ever anyway) and delivery 12% as shown and 80% do not ever get sold. Look at e-bay’s stock. It is just a spam site now.
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http://www.auctionalfie.com might be of some help?
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Those are the only two I know of that are half way reliable. But, you’re better off going to a real auction where you can actually see the car in person, check under the hood, rev the engine, etc.
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http://www.mycarauctionreview.com has a couple of car auctions sites you can use if you want to buy a cheap car from a physical auction.