They spend millions to shed ounces off of cars these days. Going off-track here, there is not an energy shortage, the is an "energy STORAGE shortage". Energy is created in many ways, STORING it for when needed is the problem. Electricity is the ideal for todays needs, but storing it requires heavy and expensive equipment. The physics of a lead-acid battery havent changed in a hundred years. Lithium-ion is a step, but we need a JUMP in electrical storage technology. When someone does this, watch this world change!