Car batteries that have much longer carrying capacity will start to become standard on all hybrid cars.
This means that the fuel efficiency of the car could go up by another 100% thus making 100 mpg cars a reality.
The electrical copacity of acids is the background for this, (conutines working on gamma mass converter) but a new form of battery as seen on tv the batteryless flashlight i thing would help suplement it. it works by shock so attached to the wheel the thing will be kicking out mad power!, if calibrated correctly to pop on and off, to prevent power faliures. So till then im sticking with the gasoline guys. (blows up room with gamma mass coverter)
im sure hybride cars will become a standard, even with new technologies they will use batteries.. maybe in the future they will make more nature friendly batteries for cars and who knows for all the rest too. i believe in a better world with friendlier cars and no pollution..