In 1909, the Morgan Motor Company began building three wheel cycle-cars or "trikes" in the UK as a compromise hybrid. With only three wheels, the SuperSports (official name) were regulated as motorcycles, and therefore cheaper, but they could carry two people in relative comfort with impressive performance. They remained in production until 1952. I have always loved these vehicles. The Hemmings blog reports that Morgan recently licensed Liberty Motors in Seattle, Washington to produce a modern version of trike, known as the ACE Cyclecar, with state of the art materials powered by a Harley-Davidson V-Twin. Donations to the "buy Tim a trike" fund are now being accepted.