Global economics, resource use and environmental restoration, politics and military security are inseparable. If we did not use gasoline in our cars, America would not be dependent on oil exporting countries in the Mideast. We would be stronger economically and politically and pollution would be substantially reduced. BMW makes liquid nitrogen fueled 7 series cars. The USA should spend billions to get liquid nitrogen in every service station. When you consider the cost of oil, including pollution and global warming, policies and wars protecting the supply of oil from Arabic countries, troops permanently stationed in Saudi Arabia and terrorism, liquid nitrogen will be cheaper than gasoline. A liquid nitrogen fueled M5 would be invincible.
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