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The premiere of the Audi e-tron at the 2009 International Motor Show in Frankfurt, Germany. This two-seat electric car, similar in appearance to the Audi R8 but slightly smaller, was powered by four UQM Technologies motors and could accelerate from 0 to 100 km/h (62 mph) in 4.8 seconds. The lithium-ion battery provided a range of approximately 248 km (154 mi). Although the vehicle was slated for production in 2012, production was canceled owing to its limited all-electric range. In 2014, Audi began producing the car upon request.Photograph: Thomas Wolf; edit: LiveChocolate