The building is still there, though significantly modified.  Hasn't been dealership for decades.  Most succinct description of building's use is "resident".  The owner/occupant collects and works on old cars, but is it not a commercial business.  He also collects "junk" and, on nice days, may occasionally set stuff out for sale, like a yard sale.  So a "commercial" building used as a "residence".  Not sure how to clarify.