I'm from the Netherlands and have bought a number of cars in the US. Let me know if I can help to further increase the confidence. For me a Paypal deposit is to show I'm serious as a buyer and to prevent the seller from selling the car to someone else in the mean time. This is then followed up by a wiretransfer which would take 5-9 working days to complete. Money Orders, althought fast, are not really an option here in the Netherlands because we get charged 12% in fees over the total. Even transferring the total amount through Paypal is cheaper for us. A buyer is taking a bigger risk than the seller 'usually'. After the money has left your account there's usually no easy way of getting it back.