When is a motorcycle not a motorcycle? The 1972 Bell Bi-Car.

Via: dirtbike.off-road.com

"Traditionalists may flinch, but here's a totally new concept in two-wheeled touring vehicles. And adventurous souls just might find that "something different" they're looking for in the Bi-Car. Eight years of research and development have gone into the Bi-Car, so it's no spur-of-the-moment idea. Bell Vehicle, Inc., IS serious about the project, and has even more expansive plans for the future. The vehicle seats two passengers in tandem and utilizes standard motorcycle controls. At lower speeds and when stopping, the Bi-Car features a retractable landing gear that comes down to stabilize the machine. In addition to a sturdy, close-fitting shell, an optional canopy offers protection from dust, rain, noise and wind. Shown is the Saturn 500 model; it's 9 feet, 10 inches long, 33 inches wide and weighs 470 pounds. Powered by a 500cc, 60-hp engine that gets up to 40 mpg."