Debuting in 1953, the KR175 was the first variant of the Messerschmitt Kabinenroller introduced. The KR175, named for its 173cc single cylinder engine, featured two front wheels and a driven rear wheel. Mostly offered as a bubble-top coupe, a limited production "Sportster" roadster was also built. This first iteration of the Kabinenroller was produced until 1956, when it was replaced with the much improved Messerschmitt KR200.