Dirty South Car Club

Hey guys, Im giving Xenforo another go and working on www.dirtysouthcarclub.com I would like to create a vehicle and parts classifieds, discussions, and maybe throw some help articles in there related to the vehicle industry.

Do you guys have any ideas? Must have addons? How to categorize the forum?Anything like that?

I'm not after any website critiques as I have just started this tonight, just looking for some ideas. Who else in running vehicle related forums?

Thanks Xenforo community :)