Messerschmitt KR200: tandem seats, a bubble canopy and the fighter-plane school of motoring (1955–1964) The Messerschmitt KR200 sat its two occupants in tandem under an aircraft-style bubble canopy, steered by handlebars and reversed by running its engine backwards. A guide to the Kabinenroller's story, the KR175 before it and the Tg500 Tiger above it, what to check when buying, and what one costs today.