The Opel Flextreme GT/E Concept was a grand tourer concept car manufactured by Opel and based on the powertrain of GM Voltec. It was a five-door 2+2 fastback coupé with rear suicide doors.[1]
The Flextreme GT/E premiered at the 2010 Geneva Motor Show.[2] Later that year, the concept received the Red Dot Design Award, after being chosen from 12,000 submissions from 60 countries.[3]