I don't think we will see everyone driving electric cars for quite some time. Most electric cars have a worse carbon footprint than most gasoline driven cars because they're being recharged from coal and gas powerplants. I really think diesel and natural gas cars should be explored more and used more. I see no reason why any fleet of cars/trucks that goes to a common depot everynight such as the post office, city vehicles,buses and vehicles of that nature cannot use natural gas. Some already are here in South Florida such as garbage trucks and city buses.