Opel Flextreme GT/E Concept: A Bigger, Longer, More Swoopy Volt

Don't let the stolen lines of the Sting-Ray Concept or the suicide doors fool you. The Opel Flextreme GT/E Concept — the second non-Saturn Flextreme concept — isn't a performance sedan. It's an extended-range electric with beefed-up Chevrolet Volt guts. » 2/18/10 11:00am 2/18/10 11:00am

Frankfurt Auto Show: Live Reveal Of Opel Flextreme Diesel-Electric…

We were at Frankfurt's Bockenheimer Depot for GM's revealing of the Opel Flextreme Diesel Concept, the latest sheetmetal incarnation of the company's E-Flex architecture. The system uses a series hybrid system supported by a diesel engine operating at peak efficiency to charge a battery pack from from power supply … » 9/10/07 12:22pm 9/10/07 12:22pm