You said “this is not a binding contract” but it is. You are right that this is not the car buying per se but it still is a binding contract sorry for the miscommunicationNo. You technically did not “purchase” the car with the $100. By placing a deposit, you pay for the strict performance under the contract of reserving, transporting, vehicle prep. NOT for the vehicle itself. Up until you sign the final contract and remit payment, the performance of the contract is solely for reservation related items (see: damages section of order agreement).
EDIT also it is not a reservation. The order document is pretty clear about it ordering a car.