Firstly, I was almost entirely inspired by ErikSW's old Gavril Wheeliepickup 5200 hp, recently brought back into the limelight (albeit without attribution) by krod1988. Those mods are based on a very old version of the D-Series. I couldn't find anything to diff the mod against and some parts of the truck seemed to...
D-Series "wheelie monster" for v0.5
D-Series "wheelie monster" for v0.5