The best urban transport
Is the bicycle.
It is pollution free once manufactured.
It is space efficient unlike any form of motorised transport, be it electric or autonomous (or both)
Around urban areas it is usually faster than anything else (unless it's 3am)
It is stupendously cheap to run & needs very little maintenance
It is door to door
It keeps the user healthy and increases life expectancy and vastly reduces risks of diseases, cancer, dementia etc.
Not everyone needs to (or be able to) ride a bike for every journey, but if UK could convert 10% or 20% of urban journeys to bike, then that would free loads of road space. It would really improve air quality which is illegally dangerous in most major UK cities.