Scam
Call him back and ask him for a $500 deposit within 1 week sent in the form of a UNITED STATES POSTAL SERVICE money order to hold the car till he comes to look at it within 2 weeks. Tell him you will show him what ever he wants to see in person or refund the deposit. Then the balls in his court. If he doesn't trust you enough to do that, then he wouldn't buy the car anyway.