- What is a CURBSIDER ? If you are not buying from a registered dealer , make sure you don't become a curbsider's victim . Curbsiders are imposters who pose as private individuals but are actually in the business of selling stolen or rebuilt vehicles . These fraud artists sell damaged or defective cars to unsuspecting consumers . Studies indicate that as many as 25% of private sales ads are placed by curbsiders ."Curbsiders" - sell vehicles outside the law. {BACK}