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