Not familiar with that term, what does it mean? Shared ride? A car for walking distances?
If the city was walkable, you would not need such a thing as neighborhood car, you could just use a bike, but apparently as a society at many places we have decided that the cars are the best mode of transportation ever.
Your 2nd sentence has issues with reality.
The statement "The life of the commonly used chemistries is only around 3 years" is completely misleading and probably inaccurate.
A lot of people report lithium batteries swelling up in their phones/tablets around 3-4 years of usage.
You would be wise to insist on an EV with LIFEPO4 batteries in the sense that calendar lifetimes are more likely to be on par with traditional engines.
In this study, we systematically compared dynamic discharge profiles representative of electric vehicle driving to the well-accepted constant current profiles. Surprisingly, we found that dynamic discharge enhances lifetime substantially compared with constant current discharge.
Specifically, for the same average current and voltage window, varying the dynamic discharge profile led to an increase of up to 38% in equivalent full cycles at end of life.
And I guess that you could make devices with smaller batteries and fast charge, with less fear of wearing them early.
I remember my parents first Dell laptop with a whopping 2 hour battery life, if you weren’t doing anything processor intensive, otherwise it was basically a UPS.
Typical issues with old batteries are things like dendrite growth. There's nothing wrong with the materials that went into making the battery, they've just reshaped themselves into an unfortunate spiky structure.