yes I was thinking more along the lines of Ubers, taxi's, long trips, or towing a van etc. It would take a lot of convincing the car makers to use the same batteries that are interchangable though, and have them easily removed and replaced...that would be a the main obstacle. Other than that it negates the potential problem with charging at same times, as the stock pile at charge/replacement sites could all be solar/wind. I like the idea.
