This is a model of a Morgan 3 wheeler. I built this because I wanted to see one of these made into a set. I think this would make a great set because Lego hasn't made one of this style car yet.
It has a shifter that engages a clutch that connects the rear wheel to the engine. The pistons move back and forth inside of the engine. Details include seats, a steering wheel, lights, an engine on the front and suspension. The main section of the vehicle is 12 studs wide, about 46 studs long, and about 8 bricks tall.