Assuming the hypothetical Model S owner drives 15,000 miles over three years, with gas at $5.00 per gallon and electricity at $0.11 per kWh, Tesla says driving one of its cars will save $284 per month over an “average premium sedan.” Tesla quotes an average fuel economy figure of 19 mpg for its competition. A 2013 BMW 550i with an automatic transmission returns 15 mpg city and 23 mpg highway. … KTM's unusual E-Speed: could it drive more people to… 5 … …

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Can an electric car save you $284 a month? Tesla … – Digital Trends