Dune Buggy/Jeep with 3 cylinder engine (the stupid cam style that Lego uses for small models), two speed gearbox, steering and rear shocks. (Two rubber bands were added to make the shock absorbers.)
Click here for "building hints" for the Dune Buggy/Jeep model below.
Click the image below to see a video of the functions.
Chopper Motorcycle with 3 cylinder engine (the stupid cam style that Lego uses for small models). (And unsprung shocks)
Click here for "building hints" for the Cycle model below.