The world of automobiles is vast and diverse, with innovations that have occasionally challenged traditional concepts of vehicle design. Among these innovations are three-wheeled cars, which have ...

Tuesday, people in Knoxville got a look at a new kind of car that could save money at the pump. It's called the Elio. The Elio is a three-wheeled car designed to work as a commuter car, going to and ...

Three-wheeled cars have long stood on weird legal ground between real cars and motorcycles. They’re not car-cars (for lack of a better term), so they don’t have to be subjected to crash testing, and ...

What do the Elio, Aptera,{}Toyota i-Road concept{}and the spectacularly awful Zap Xebra have in common? They--and many more small-volume economical vehicles and concepts besides--all use one fewer ...