https://www.youtube.com/watch?v=98mlJ1N50DU
I've seen this type of thing in another car video. It seems like with a small (low power) electric motor a geared transmission can be useful in making the car more drivable. Probably won't ever be applicable to new electric cars but for converting old (and small) cars it could be useful occasionally.
"Bob's your Uncle." [flashback to the old country] Haven't heard that one in a while.