From the document they ask you to sign with the deposit:
2.Manufacturer has reserved the right to change the price to Dealer of new motor vehicles without notice. In the event the price to Dealer of new motor vehicles of the series and body type ordered hereunder is changed by Manufacturer prior to delivery of the new motor vehicle ordered hereunder to Purchaser, Dealer reserves the right to change the cash delivered price of such motor vehicle to Purchaser accordingly. If such cash delivered price is increased by Dealer, Purchaser may, if dissatisfied therewith, cancel this Order, in which event if a used motor vehicle has been traded in as a part of the consideration for such new motor vehicle, such used motor vehicle shall be returned to Purchaser upon payment of a reasonable charge for storage and repairs (if any) or, if such used motor vehicle has been previously sold by Dealer, the amount received therefor, less a selling commission of 15% and any expense incurred in storing, insuring, conditioning or advertising said used motor vehicle for sale, shall be returned to Purchaser.
3. If the used motor vehicle which has been traded in as a part of the consideration for the motor vehicle ordered hereunder is not to be delivered to Dealer until delivery to Purchaser of such motor vehicle, the used motor vehicle shall be reappraised at that time and such reappraised value shall determine the allowance made for such used motor vehicle. If such reappraised value is lower than the original allowance therefor shown on the front of this Order, Purchaser may, if dissatisfied therewith, cancel this Order, provided, however, that such right to cancel is exercised prior to the delivery of the motor vehicle ordered hereunder to the Purchaser and surrender of the used motor vehicle to Dealer.
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5.Unless this Order shall have been cancelled by Purchaser under and in accordance with the provisions of paragraph 2 or 3 above, Dealer shall have the right, upon failure or refusal of Purchaser to accept delivery of the motor vehicle ordered hereunder and to comply with the terms of this Order, to retain as liquidated damages any cash deposit made by Purchaser, and, in the event a used motor vehicle has been traded in as a part of the consideration for the motor vehicle ordered hereunder, to sell such used motor vehicle and reimburse himself out of the proceeds of such sale for the expenses specified in paragraph 2 above and for such other expenses and losses as Dealer may incur or suffer as a result of such failure or refusal by Purchaser.