So as most of you know, im selling my car. I have been getting emails and such from people who want to come buy and test drive it. Granted they sound interested in buying the car, but they could just be looking for a chance to drive my "mad tight JDM dorifto whip". What steps can i take to help ensure that serious people drive the car, and that broke ass morons dont? I was thinking of charging $50 for each test drive or something . . .