Bob's Pre-Owned Car Mart

Bob's Pre-owned Car Mart is a special encounter in Fallout. You stumble upon used car salesman in the middle of the wasteland. He has small office surrounded by junk cars. You can't actually buy a running car from him but you can find a Red Ryder BB gun from his office, as well as one of the kind (in FO1) Red Ryder LE BB Gun in a locked footlocker in his office.