Since a store is a place where things are stored until purchased, why not a car store? of troy said as much above.
Even though I haven't heard anyone till now speak of a car store, I don't have a problem with the terminology. As Faldage observed above, the word 'shop' connotes something that could be worked on. By calling a place a 'car store' rather than a 'car shop,' there is the connotation that these cars are right and ready to go.
'Car store' sounds friendly. It sounds quick. It sounds a little mindless and frivolous. It sounds like the kind of place one would easily put down $20,000.00 within a half hour, except, once you buy the thing, then it takes another hour or two to go through all the financing process and add-on's they try to talk you into, complete with PowerPoint presentation, which I refused to look at. "But you must. It's part of my job." "If you turn that PowerPoint on, I'm walking out of here."
