go to be honnest, nimh or lipo, why should the car be restricted? the driver should be the restriced item and he/she should be free to choose cells and motor (dont curent rules allow 5 cell anyway? so why enforce it on everyone else?)
please dont make Off road like TC

, lots of rules, not as much atmosphere and all about wringing the last tenth out of the car
i have found buggies to be fun, cheap, rewarding to drive (more down to driver than set up) oh and did i say fun
also the atmoshere and racers seem allot better as in willing to help/chat etc
take a look at how buggies are growin and TC is shrinking