and that’s if we assume the need for air conditioning, which is energy intensive and therefore would require a large battery.
on other hand if we go with my air conditioned city approach:
then the cars no longer require onboard energy storage and thermal insulation for HVAC and could be made perhaps as light as about 500 lbs.
This Segway Ninebot GoKart Pro weighs just over 100 lbs for example:
it’s way safer than a bicycle because your center of gravity is much closer to the ground. a bicycle slipping on ice you’re looking at a cracked skull. it’s safer than walking even because you can still slip and fall while walking, but not while sitting in a chair that keeps your ass inches off the ground.
you may laugh at slipping and falling but ask any 80 year old and they won’t think it’s so funny.