Such as the Renault Twizy?
There are some 3rd party makers of glass windows.
https://news.ycombinator.com/item?id=20506703
A (at least visually) nice re-make of the Isetta:
The downside to these is having all the (percieved and real) vulnerability of the cyclist as well. And they still need quite a bit of space for parking.
BONUS "Micro Men" documentary/drama about Sir Clive Sinclair vs Acorn (from which grew Acorn RISC Machine -> ARM) https://youtube.com/watch?v=XXBxV6-zamM (1h 24m) "A man's reach should exceed his grasp or what's a heaven for?"