biking in the rain mostly sucks because of splashback from the road. once you've eliminated that, it's no worse than walking in the rain.
I think the main reasons bikes aren't popular are: safety (perceived) weather cargo capacity effort requirement
Enthusiasts don't mind the latter and reluctant cyclists will still find sufficient deterrents even if it's eliminated. So I don't think ebikes are really going to move the needle in terms of ridership, regardless of what their buyers tell themselves at time of purchase.
I'm in Austin, TX and get soaked for a different reason - sweat. We get about 3 months of 100 degree days. I'd love a golf-cart EV with good A/C.
I agree it’d be super awesome to get car-like protection from rain and wind, better stability than a bike, but maintaining the very low mass (and therefore low inertia and low pedestrian risk) & low cost & low footprint & high efficiency of bikes.
approximately 360kg, so def not as light as a bike, but not incredibly heavy either. 100km range.
Closest thing I could find was " City Commuting Recumbent Quad " , 2nd from the bottom of this page: https://www.trikexplor.com/pages/trikexplor-recumbent-quad
I still think they are a bit big but with smaller diameter wheels, removal of pedals for full electric kart experience (but otherwise speed limited as per usual e-bike) maaaybe they could be made small enough and lightweight enough to play with.
https://www.motrike.com/product-item/city-commuting-recumben...
EDIT: this is even closer: https://www.better.bike/models