I purchase a vehicle face value $45k with a 10% down payment and financed the rest at 5% for 60 months. Added some optional maintenance services for $3k. What shoud my entries be? Do I include the optional services, tax and title as an asset or expense them?

The value of the vehicle is added to the asset account, 90% of that amount is a creditor while 10% will come out of the bank account. The maintenance services are I assume a prepayment. The other costs are capital costs also