Yes, the Roar Fuel Offroad Nationals has split, at the Buggy Nationals only 1/8 scale will be offered. It will be held at http://www.thefarm2.com/
. The other will be the Truck Nationals and will include 1/10 truck, Unlimited Stadium Truck and will be held at http://www.vegasrc.com/index.htmls
The main reason it was split was not due to the Truggy(unlimited stadium truck) growth but the fact that 1/8 buggy is really that popular for it is already almost filled up(I think) with a 255 entry limit.