American AI is usually American Airlines, and usually appears because of a baggage fee paid at the airport, or a purchase made during a flight. posted 09/11/2012 Helpful (4)
Electric motors are in general, a lot more efficient that internal combustion engines. An average combustion engine has about 18â20%. A formula one engine, has about 50% of an efficiency.
For more information, visit avt.inl.gov. Not only are electric vehicles easier and. cheaper to maintain, they are also more. efficient than the gasoline engine and are. therefore cheaper to operate. Based on an. electric vehicle efficiency of 3 miles/kwhr and. the cost of electricity at 7 per kwhr, the electric.