Most discussions around stored electricity for cars assume that the car and driver have to wait for recharging.

Will it not become possible to exchange the discharged battery at the re-charging station for one that is already charged ?

Will it not become possible to have multiple batteries in a car to facilitate recharging ?

In the future couldn't we upgrade our EV or hybrid vehicle to newer battery technology, maybe add/remove batteries depending on how far we need to drive ?

I believe this should all become doable in the near future.

Best Tank = 54.2 mpg (Sep. 9'06)
Best Trip = 61.9 mpg