C3 has 2 of the most powerful Banebots motors for drive and gets 4WD by running belts to the front (I should put a picture up)... hang on...

c3___3_3_5__featherweight_fighting_robot__by_eventorizon_ajsb-d5z0izd.pdf

What will change is the motor in the pic is a HK50 but its going down to a HK 40, and the top panel is 1.2mm Ti 5 not polycarb as in the pic.

Drive is 2x P60 4:1 Gearboxes with RS775 18V motors running of a 6S 2.65 AH lipo, weapon is a 3.5kg drum off a HK 4035 800kv running on 10S through a Scorpion commander 50V