A Velomobile is not a socially acceptable vehicle, it is very fast compared to a normal bike but still limited to bike infrastructure and other cyclists absolutely hate them. Yes, they solve the leg suck problem and if all of the cars would be gone and you could use the roads then that would be a great solution.

I lived right next door to the guys that developed it and in the Groningen country side you could see them zoom by with some regularity. But where I live now I think I've seen exactly one in five years and that was after it had bowled into a mom on a cargo bike... the stigma roughly identical to driving a Canta on the bike path.