acmirapt It really is a good bit of kit. I am part of a car club here in Australia as well so can relate to the community you are trying to keep. If you have spent money on your existing SMF instance then it can't hurt to try Flarum, it doesn't cost you a thing extra and if you don't like it simply move back to SMF.
I do wish you all the best and please don't hesitate to post your community once you have established it in the Showcase.
