Not only are electric motors three times more efficient than gasoline engines, but they also enable cars to run on wind power at a gasoline - equivalent cost of 75 cents a gallon. (treehugger.com)
Moreover, REN21 says renewables are becoming the «least cost option» with some countries at US$ 0.05 per kilowatt hour or less, below equivalent costs for fossil fuel and nuclear. (futurefuelstrategies.com)
Its coupe equivalents cost # 127,515 and # 189,615 for the S 63 and S 65 AMG respectively. (autoexpress.co.uk)