I came across this on former Mythbusters Adam Savage’s Youtube channel. 20 MPH top speed, 35+ mile range, can get another 18 miles per day on solar charging alone. As Adam describes “It looks like a kid’s drawing of a future vehicle, but not the way that you think”.
Really need categories for higher powered ebikes tbh. Just stick it on a CBT or what ever your equivalent license is to ride a 50/125cc bike.
People are often building and using them anyway and they are the ones most likely to abuse them and ride dangerously. People who would get one registered or what ever the process you want is are far more likely to be fairly responsible with them.