― DEALER MISREPRESENTATION ∙ Used cars sold by Wisconsin dealerships are required to have a sticker in the window called the Wisconsin Buyer's Guide. Read it carefully before you buy. The window sticker describes the items the dealer inspects, explains defects, and lists any included warranties. Dealers must inspect the vehicle and disclose any noticeable defects. If you notice a defect shortly after purchase that was not disclosed on the buyer's guide, ask the dealer to cover the cost of [...].