Provides that if the purchaser or transferee is a dealer he or she shall, on selling, leasing, or otherwise disposing of the vehicle, promptly execute the assignment and warranty of title, in such form as the director shall prescribe, unless the dealer has rejected a contract subject to future acceptance under RCW 46.70.180(4). If the dealer has rejected a contract subject to future acceptance under RCW 46.70.180(4), the dealer is not required to execute an assignment and warranty of title.