Post up your best/favourite crawlers and mud bashers and 4x4's Heres mine Hopper on 38" crawler tires, and a 6.7 litre Turbo Cummins
Here is one build I really like, my plan for it was to make it like a Street-Legal Formula Offroad Truck like the one in the other image. The rollcage is from this mod by the way: https://www.beamng.com/resources/baja-hopper-parts.5861/
My D series build see's the most use, Roamer just has cut guards (for now) but doesn't see much driving.