In January 2008, a rebadged version of the concept was introduced at the North American International Auto Show as the Saturn Flextreme.[3]
The Opel Flextreme is expected to emit 40 grams of CO2 per km or less (according to European test procedure ECE R101 for range extender vehicles).[4] It is expected to reach approximately 153 mpg‑US (1.54 L/100 km; 184 mpg‑imp).[citation needed]