"Spec" classes in buggy racing

[sosidge]

Anyone have any thoughts on what "works" as a spec class in off-road, with the aim of cutting costs for the low budget racer, and/or encouraging newcomers into the sport.

Motors - how restricted can you go and what works? Tamiya 540? 19T?

Cars - any type with and modification? 2wd only? One car with restricted mods or box stock (e.g, Tamiya DF-03 Dark Impact, DT-02 Desert Gator, AE B4 RS)

Electrics - restrictions on packs (eg sticks below 2000mAh)? Restrictions on speed controllers?

Tyres - control the rear? all four wheels? or leave it open?

Dave