For years, I'd dream it was the last day of finals and I'd missed so many classes I didn't know where the final was going to be. Finally, I outgrew it. Apparently, a lot of people have dreams like that.
Then, I started having electric car dreams. I'd dream that I had a car with a huge battery. I'd drive to an "energy" station and drop off the mostly discharged battery in my car and pick up another, fully charged battery. I have no idea why I've had that dream again and again. So, this articles is not about the ideal car I would love to have... it's about a car I actually have dreamed about a bunch of times.
Diagnostics in the battery microprocessor would make sure that you were handing in a healthy battery and diagnostics on your car would assure you that you were picking up one. Insurance would cover problems in-between.
Bigger vehicles might carry a few batteries. Smaller, more efficient vehicles might just need one.
Think of all the jobs that could develop around servicing changes. This is a technology that should be developed in the US, not China or India.
We need a can-do attitude that focuses on ending our dependence upon oil, that sees use of oil as a bad-for-America security risk that is less patriotic.