Donut Labs’s curious design—which looks like an empty metal cylinder with tapered edges—could mark a pivotal moment for EV ...

It's a new electric motor called the Donut Motor that promises ... worth of electric car motors (you need one in both front or both rear tires to avoid going in circles) for their typical vehicles.

Companies are still working to get in-wheel motors into mass-market vehicles, yet Porsche has been working on them for over ...