Maybe R3 would be better.
Chile is trying it, a bit as you want (promote 2WD but allow 4WD). It seems rally remains popular there, and manufacturers are interested. It's difficult for them, but Renault, Citroën and Honda bought cars and make them come to Chile. They can easily be tunned to be more aggresiv.
http://www.rallymobil.cl/
For the Final Round they've combined WorkdRX and EuroRX1 in the heats and made it a 1-Day event. This must be the lowest point of WorldRX history.
World Rallycross Championship...