I'm assuming you're referring to the "vehicles" mentioned? Unless you bought a whole car, you should still be covered by PayPal. Open a dispute within 180 days of the purchase, if not resolved between you and the seller turn it into a claim within 20 days of opening the dispute. Sounds pretty simple.
Years ago I shipped something after not contacting the buyer for over a week. It was packed poorly on top of that. Before it ever got to the buyer, PayPal froze the account used and then took the money back for the buyer. I was out my stuff AND my money. I learned the hard way to 1: communication is key to any transaction and, 2: packed whatever it is better than you need to.
Go after this POS so he gets what he deserves!