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SHANGHAI: With concern of a green future and in answer to the Chinese government's appeal for energy-efficiency, global and domestic automobile manufacturers are showcasing their electric car models at the ongoing Shanghai auto show.

Troubled carmaker General Motors is displaying the production version of its Chevrolet Volt - a vehicle that delivers up to 64 km of gasoline and emission-free electric driving.

The Volt, expected to be introduced in 皇冠体育app by 2011, uses electricity stored in its 16-kWh, lithium-ion battery to move the wheels at all times and speeds.