Aptera, the American EV company producing three-wheeled solar-powered cars, has developed prototypes with in-wheel engines as ...

But the engineer's in-wheel motors saw the most use in a hybrid. The Lohner-Porsche Semper Vivus (Latin for "always alive") combined hub motors with a gasoline engine to extend range and address ...

And while it’s available in hub-less (open center) wheel form on the $30,000 boutique ... coil windings arrayed like pistons in a radial engine. These act on permanent magnets that, at least ...