For the "Fast car competition" organized by BuWizz, I have done that:
For this contest, you have to make a vehicle with suspensions, and do a video showing it doing at least one jump.
Of course, the MOC must be powered by a BuWizz!
For the steering, there is a servomotor. The driving is done by two L motors, with a 1:1.8 ratio. So the buggy has a correct speed, and enough torque to be driven on dirt, sand...
It is fully suspended. The front is an ordinary system. But for the rear, I couldn't do independant suspensions (not enough compact) or a suspended axle (because as the motors are in the chassis, when you accelerate the axle tilts). So I done an "amost suspended axle". The liftarms thin 5L have an effect of anti roll-bar.
I have tried to do a light design. Thus, the MOC weighs 460 grams.