The Audi e-Tron concept was unveiled at the 2009 Frankfurt Motor Show. It is an electric supercar based on the Audi R8, and has a fully-electric powertrain with an electric motor on each wheel which distributes torque individually, allowing for a full quattro four-wheel drive layout.The electric motors in the e-tron concept produces 230 kilowatts (313 PS; 308 bhp) and 4,500 newton metres (3,319 Source URL: http://hayleyatwellstuff.blogspot.com/2010/04/audi-r8-spyder-e-tron.html
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