That would rock, Dan! my .02 would be to encourage a very social aspect to the location- perhaps even getting hooked up with the local SLK club. Encourage the members to want to stop by just to shoot the breeze- almost like a pub. Encourage them to perhaps start some of their weekend drives from the location. Who wouldn't want to see the toys and them getting installed.
This has been very successful for a local 3rd party Honda Goldwing shop located between San Jose and San Francisco. You'd be amazed at how much free coffee and doughnuts every so often can add to the bottom line....