Business's pinned at the top of the forum but only serious people running them
For business's maybe have things like peformance shop(pusdey),paint shop(maybe someone working at pudsey),local used cars,car importer,a cheap parts shop like supercheap auto(or what ever in your country,a panel beater,maybe some other things i cant think of
the ability to sell cars to the dealer for a relistic amount or try your luck maybe put the classifieds in a pinned post at the top