Opel’s Flextreme concept car, which makes its premiere at the International Motor Show (IAA) in Frankfurt (September 13 – 23, 2007), boasts the body of a dynamic monocab, as well as the completely new environmentally friendly E-Flex electric propulsion concept and a host of innovative details. In contrast to conventional vehicles and hybrids, GM’s E-Flex system uses an electric motor, powered by a lithium-ion battery, to propel the Opel Flextreme concept for up to 55 km of electric-drive-only range. A 1.3 turbo-diesel onboard engine generates additional electricity to replenish the battery and extend the vehicle’s driving range fully charged, the Flextreme’s 55-km all-electric driving range is enough for most daily commuters in Europe

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