> Cheap, safe, non-polluting, no maintenance car?

We've made tremendous progress in that direction since 1960. What's your point?

> A world where you could walk to the things you need because they're close?

That's not a technology problem; much of the developed world is like that and more of the world is getting to be like it with progressive urbanization. The US made a deliberate social choice to focus on auto-centric development that inhibits that a bit in the US, but that's a social problem, not a technical one.