Actually, the CPO Terms and Conditions says that the $1K deposit ("Order Payment") can be applied to another vehicle for up to 72 hours after a cancellation/default. So if put down the $1K deposit on a CPO, and later you see another car you like before yours is delivered, you can cancel the order and transfer the deposit to the other car.
The other option is to give up the $1K deposit. For example, if you saw a Tesla you wanted on eBay after putting down the deposit, you could buy it, and give up the $1K deposit.