For me it's more to possibility to have the ideal car for each situation. Going to the dentist, order a one person car, pick up the kid, order a two person car

For me it's more to possibility to have the ideal car for each situation. Going to the dentist, order a one person car, pick up the kid, order a two person car or order a truck if I need to pick up something large. Utilizing smaller vehicles when ever possible will use less energi. Some one like me who lives in a small village could also opt to share a car with someone else if me and my partner wants go to the city for night out. A few of my coworkers live close to me, I wouldn't mind sharing a car with them if we happen to leave the office at the same time. There's small changes that will eventually yield pretty big results. Some German road scientists have a study that show that it's only a few percent difference in the number of cars on the road that leads to traffic jams for instance. Eliminate 5 - 10% or cars and traffic jams goes away, for the most part.