Flextreme

General Motors presents the third variant of its electric vehicle architecture E-Flex, the Opel Flextreme. Its energy source is a battery that powers the electric motor. Another energy source on board – such as a hydrogen fuel-cell or combustion engine – provides more power to increase operating range. In the case of the Flextreme, this is a 1.3-liter CDTI diesel engine. Electric propulsion and a combustion engine are used in a manner fundamentally different from that of conventional hybrid propulsion vehicles.

Opel, a division of General Motors (GM), has unveiled Flextreme, an eco-friendly concept car designed to emit less than 40 grams per kilometer of carbon dioxide. The electric vehicle, which debuted at the International Motor Show (IAA) in Frankfurt, Germany, is built upon E-Flex, GM's electric vehicle architecture, and uses a lithium-ion battery that can run up to 55 kilometers (km) at a time. Flextreme also incorporates versatile storage space via its rear-hinged back doors, transparent roof, tailgate doors and luggage compartment located beneath the vehicle's floor.