Electric vehicles are becoming an increasingly common sight for many people. Whether it’s seeing a shiny new Tesla drive down the street, or hopping on a light rail train or renting an electric scooter to obtain from that train to your house, EVs are everywhere.
One problem with electrical motors is that because of the speeds at which they rotate, to end up being useful generally in most vehicles, they need a gear reduction device. I’d call it a tranny, but generally, these gearboxes just have one rate. This takes the 10,000 rpm from a drive motor and gear reduction motor reduces the velocity at the wheels while multiplying torque.
What if there were a engine that didn’t have to spin as fast as 
that to create enough usable power and torque to drive a car? If that existed, you could alter all types of things about electric car design. If you didn’t need a gearbox, you would save a good-size chunk of weight and, probably a lot more crucially, space.
With that space, you could raise the size of your battery pack, and with the reduced weight, you would improve all kinds of things such as handling, range and acceleration.