Paying a car

Hello, how do you pay a car properly with the least risk? So far I had always paid in cash, financed the rest. Now I want to pay the purchase price completely. However, the sum (about 13,000 Eur) is too high for me as cash. Or is it here the amount still within the usual scope of the cash payment? My experience here regarding the payment processing of larger sums is limited. The car dealer (contractor) said I should transfer one day before collection and possibly bring the transfer receipt. He should register the car for me. Here I have already given him the EVB number. How would you proceed exactly?