What also makes cars and coffee nice is that it's essentially pretty central. Guys can come from the north, east, south, ect and not feel like they drove way out of their way to get there. This also allows it to double as a great "meeting" spot for a group who plan to travel to another spot after. I'm in Grove City, guys used to drive to lennox together after meeting at Easton. I always thought that would be fun but no way I'd go out of my way like that just to drive back the way I came.
Clay, you have done a great job and as long as the same basic idea remains I think adding some optional events or reasonable sponsoring into it will do no harm. Just don't take on more than you can handle, get some go-getters like Wagner or someone to help with organizing.