It's possible some of you may know more about physics and electrical circuits, but I'm not totally ignorant on it.
1. The battery technology rate of improvement is like the microprocessor in computers.
As the battery cells get smaller , the number in series can be greatly increased in the same vehicle.
This will result in rapid advances in both power and endurance.
2. The reg car battery uses an alternator to run the DC battery current "back" into the battery to recharge it.
This is why a running car never has the battery go dead.
To do this safely, the new smaller batteries may need to have parallel circuits to effectively alternate charging with those powering the car.
FYI, once moving over 50 mph on a hwy , the battery power is only needed to overcome air resistance and tire friction.
This is fairly substantial in most cars, BUT the conservation of energy allowed for the existing car engine to
operate at much lower RPMs and a lower gear on the hwy.
This is a very simplified explanation of the possible design of future electric battery circuits in cars. But it's Getbig and
I'm not at an AAPT conference .
https://www.aapt.org/3. I've seen and heard a lot of pro/con prediction for autonomous driving cars. I tend to think that's waaaaay into the future.
The number of cars driving in densely populated areas will only increase. Plus, the insurance company risks would make rates
higher then many could afford . In simple terms, I'm skeptical about "autonomous driving" being common ,any time soon