stock johnson silver can class and a open 21.5 or 17.5 brushless spec esc class would be ideal. Anything faster will just be too much.
Rubber tyres only and no dish rims.
Scale FWD bodies only, no race blobs.
6 min heats.
2 finals with reverse grid for top 6 or 8 cars from 1st final.
emphasis must be on driving ability.