Earlier quoted context omitted.
"Transport to where-ever you need to go, an what-ever time you need to go there" has to functionally be pretty car-like. My question is how he wants to dispatch it on demand so it doesn't need to stay parked near us.
Buses and trams do that as well, or at least extremely close to it. If the next bus is in a minute, and it's going to the block you're going to, guess what - you can go where you want, whatever time you want. This is the case in many areas. When I was in Romania, between buses, trams, and rail I could go wherever I wanted, whenever I wanted. There was always an option available, typically multiple overlapping options…
It's only 22 miles. A replacement for a car should be able to do this in about 32 minutes. But it would have to go point-to-point on demand, they can't cover the spanning tree of n^2 possible trips with any reasonable frequency (mostly because n^2 taxpayers don't exist, nor housing for them).