GM details Ultium EV motor family, enabling more range without bigger batteries

Possible electric Chevrolet Camaro in GM Ultium teaser videoGeneral Motors on Tuesday revealed more about the motors and propulsion systems that will power a generation of Ultium-based electric vehicles. Motor design and efficiency is an unsung hero in the drive for pushing EV range higher without having to upsize the battery—and the demand on charging infrastructure—so GM’s...