Get an Instant Cash Offer from Kelley Blue Book®, then enter the value below to update your deal. You will receive a certificate for the value of your trade-in, redeemable with or without the purchase of a new car. Get your True Market Value® from Edmunds, then enter the value below to update your deal. Get a True Cash Offer from TrueCar, then enter the value below to update your deal. You will receive a certificate for the value of your trade-in, redeemable with or without the purchase of a new car.