Opel Flextreme GT/E
              < Opel Flextreme GT 
 
            
          | Opel Flextreme GT/E Concept | |
|---|---|
| Overview | |
| Manufacturer | Opel | 
| Production | 2010 (Concept car) | 
| Body and chassis | |
| Class | Grand Tourer (S) | 
| Body style | 5-door 2+2 fastback coupé | 
| Layout | Front-engine, rear-wheel drive | 
| Related | Opel Monza Concept | 
| Dimensions | |
| Wheelbase | 2,900 mm (114.2 in) | 
| Length | 4,760 mm (187.4 in) | 
| Width | 1,870 mm (73.6 in) | 
| Height | 1,310 mm (51.6 in) | 
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.