The phrase that is used most commonly here in the US is, "as-is." When a car (or anything else) is purchased "as-is" it means that there is no warranty, and that the thing may not work at all. If a buyer is purchasing an "as-is" item he should inspect it carefully because he will not be able to return it or ask the seller for any type of adjustment after the sale. Usually an "as-is" item is sold for a much lower price than a similar item with a warranty. The buyer accepts this risk because he is convinced, after inspecting it, that the item will work acceptably, or that he can fix it himself.