Concept

Car + truck + skid steer in one
Hydraulic power cube driven, 4 wheel drive on skid steer and truck platform (8 motors)
Skid steer as usual + platform which connects to hydraulics of the skid steer but has much higher speed + hitch for towing. Can also be used for skid steer to transport itself over longer distances when used in skid steer mode. For truck mode, platform provides steering, cargo, and power
Nominal 64 hp each for skid steer and 64 hp for platform - combined 128 hp which can move 8000 lb at
Uses 5 Minute Design

Components of 5 Minute Design

Engines must have muffler
Keep pressure at 3000 psi for low-cost hydraulics or derate 6000 psi to 3000 psi with bypass (loses pump capacity but ok if we use 1.7 ci and use only 60 hp of 120 hp capacity)