My friend has a Mitsubishi kei van Electric and it’s exactly what you describe. It’s just like a regular kei van but electric. It is a wonderful, wonderful car. Because of the low center of gravity of the heavy battery. It has no roll around corners like a regular kei van. It’s like a sports car. It is as simple as a car could be.
Only thing that’s missing g for me is a 4x4 model.