Karl Benz invented Benz motorwagon in 1886. It is a vehicle designed to be propelled by a motor. He developed
a successful gasoline powered two stroke piston engine in 1873. After this he started developing a motorized vehicle.
The Benz motorwagon was three wheeled automobile with a rear mounted engine. It was constructed of steel tubing with wood work panels, the steel spoked wheels and solid rubber tires. Steering was by way of toothed rack that pivoted the unsprung front wheel. Full;;y elliptic springs were used at the back along with a live axle and chine drive on both sides. A simple belt system used as a single speed transmission, varying torque between an open disc and drive disc.
It is 954cc single cylinder four stroke engine, 2/3 hp(0.5KW), 250rpm. It weighs 100kg. Although its open crankcase and drip oiling system would be alien to a modern mechanic, its use of a pushrod-operated poppet valve for exhaust would be quite familiar. A large horizontal flywheel stabilized the single-cylinder engine's power output. An evaporative carburettor was controlled by a sleeve valve to regulate power and engine speed. The first model of the Motorwagen had not been built with a carburetor, rather a basin of fuel soaked fibers that supplied fuel to the cylinder by evaporation.
