 Kelly Blue Book is the one-stop shop for pricing, fixing, selling, and instant cash offering. Instant cash offer is exactly what it sounds like, an official offer to buy or trade your car. Just enter your VIN or license plate, answer a few questions about your car's history and what kind of condition it's in. In minutes, you'll receive an offer to sell or trade your car that you can be sure is fair. Then choose a dealer to purchase your car and schedule a time to meet. For all of the its, kbb.com.