>In a passenger vehicle you'd think they'd be able to get away with a small motorcycle engine. The range extender on the BMW i3 EV is a motorcycle sized engine

>In a passenger vehicle you'd think they'd be able to get away with a small motorcycle engine. The range extender on the BMW i3 EV is a motorcycle sized engine at 647cc: https://www.caranddriver.com/reviews/a15088505/2017-bmw-i3-with-range-extender-test-review/ https://www.caranddriver.com/reviews/a15088505/2017-bmw-i3-w...