These vehicles are more like golf carts than cars. Top speed of 56km/hr. No safety features. What is interesting is that the batteries, converters, and motors are so cheap that they offer a golf cart with a vehicle body for $2500.
When I was in Nice for a couple weeks, it became very apparent that small cars fit far more vehicles on the road, and it was definitely in greater proportion that the relative size to SUVs in america.
Smaller cars can drive much closer together. Something about the size, but also if there's a lot of cars around, you can see through the windshields of the car ahead of you to gauge traffic.
Raised trucks seem to have poor sight lines, which is weird because people buy them to "lift up" above traffic.
Also traffic circles are about 2x more efficient with European cars than SUVs. I think that has to do with the fluidity of letting in cars vs trucks with their strangely larger "personal space" on roads.