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