Car Dealership Locations and other?

[deneco4]

I know ive driven past a couple car dealerships, but when i went to look for them I couldnt find them. Where are they?

Also...what else is there to do,buy,rob thats not on the map? Seems like theres a ton of buildings that are there just for show and no point. Cant even go into a 7/11 or anything anymore. I liked that about San Andreas, alot of interiors. I thought theyd do alot more inside buildings on this game. I mean...whats the point of that huge musuem when the helitour guy said it was "closed down".
Unless your doing the story it feels like an empty city to me. Sort of uncomfortable in a way.

Anyway, wheres the car dealership anyone? Thx

[GrUnTxSKaTeR]

Theres a turismo dealership on the road adjacent to your Middle Park safe-house in Algonquin.
Heres a good interactive map with all sorts of things as well as all the buildings you can go in:
http://grandtheftauto.ign.com/maps/1/Liberty-City-Map

[xnvy]

There are actually lots of buildings with interiors and more are being found every day but due to the sheer size of Liberty City it makes it seem like there's not that many.