Czech company Katanga has created VM45, a motorized velomobile – a human-powered vehicle that combines elements of a bicycle and an enclosed aerodynamic shell – with four wheels and a body made of milled foam. Polyurethane foam was used for the body, which the design team had to mill into several smaller portions due to its large size. They glued them all together in the end to encase the four-wheeled bicycle, or quad-cycle, that makes up the motorized velomobile VM45