Sounds great.
I think a mini championship might be good fun and attract a few more people.
Not sure about splitting 2wd an 4wd. With trucks the difference is narrow due to the high grip the trucks generate. I ran the 2wd last time and over the whole race I would say I was half a lap down on 4wd and it was the first time I a had driven it.
Either way its all great fun!
