The complexity of the traditional ICE car is mind-boggling. There are several thousand moving parts that are interconnected by belts and gears and need to be constantly oiled and cooled. Air must be continuously pulled in to mix with gasoline to achieve combustion.

While the ICE engine is large, heavy, and "internally combusts" many times each second, the electric motor is exponentially simpler. It's much lighter and smaller, and you can count the number of moving parts on your right hand; it can be mounted right on the axle. This removes a lot of complexity in car design.

This is the punchline: The motor is the most complex and important part of the ICE car, and it is one of the least complex parts of the EV and, perhaps surprisingly, not among the most important parts.