A used car dealer or sales person must make certain disclosures to prospective retail buyers of used cars and other motor vehicles before a purchase contract is signed. See Wis. Admin. Code Trans 139.04(4)-(6). The used car dealer must use Wisconsin’s “Wisconsin Buyers Guide,” a form document proscribed by Wis. Admin. Code Trans 139.04(6), which must be displayed within the car and readable from the outside. The dealer must give this guide to the consumer to keep upon purchase of the car. The Buyers Guide requires the car dealer to inform consumers about certain conditions of the used car so that the consumer is informed of these matters when considering whether to buy the car.