Vauxhall will unveil a concept car at this year’s Geneva Show.  The Flextreme GT/E illustrates how extended-range electric vehicle (E-REV) technology can be plugged into large or mid-sized vehicles, as well as compact cars, like the upcoming Ampera.

The Flextreme GT/E achieves a projected drag co-efficient of just 0.22, allowing it to reach an estimated top speed of 125mph-plus while conserving energy and extending the driving range.

Exterior design
The clean frontal styling features a low bonnet line and an extended nose section, which is clasped by wing-shaped, signature LED headlamps, which are in turn carved into the front wings and across the bonnet line. The new trapezoidal grille is slim but bold, with the prominent wing-shaped chrome bar carrying a large Vauxhall emblem, which doubles as a socket for charging the Flextreme GT/E’s battery pack. The upper section of the grille is used to admit cooling air, the lower portion being covered by a translucent panel. The absence of additional air intakes allows a low frontal area for aerodynamic efficiency and also enables the Flextreme GT/E to meet future pedestrian protection requirements.

Access to the cabin is enhanced by the adoption of rear-hinged rear doors, an evolution of the FlexDoors concept from the new generation Meriva. To preserve the clean exterior looks, all door handles are replaced by light sensors. These trigger the doors to open when covered by the driver’s or passenger’s hand. To reduce air turbulence, exterior front door mirrors are also absent, replaced by small camera pods in the base of the A-pillars.

The coupé look is completed by a steeply raked tailgate, carrying wing-shaped LED light units which echo the form of the front headlamps.

the Flextreme GT/E is estimated to offer performance similar to that of the Ampera: a battery-powered driving range of up to 40 miles – with zero CO2 tailpipe emissions – and a total range of over 300 miles.  Average fuel consumption is estimated at 175mpg, with CO2 emissions of less than 40g/km.
Unlike a hybrid vehicle, the wheels of the Flextreme GT/E are powered at all times by electricity. For typical journeys up to 40 miles, energy is supplied by a T-shaped lithium-ion battery pack located under the floor and rear seat.

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Vauxhall Flextreme GT/E concept Technical Data

Body style
Type 5-door coupé, 4-seat upper mid-size concept vehicle
Co-efficient of drag 0.22
Exterior dimensions
Overall length (mm) 4762
Height (mm) 1308
Width (mm) 1871
Wheelbase (mm) 2900
Front track (mm) 1600
Rear track (mm) 1600
Wheel size 21 inch
Tyres 195/45 R 21; extra low-rolling resistance
Type Electric drive, front-wheel drive
Battery system:
Type Advanced lithium-ion (manganese spinel)
Energy 16 kWh
Nominal voltage 350 volts
On-board charger 3.3 kW
100% recharge time (230V outlet) < 3.0 hours
Electric drive unit:
Max. power 120 kW
Torque 370 Nm
Power 53 kW peak output
Engine type 4-cyl. 1.4l gasoline-fueled combustion engine
Pure electric mode range 60 km
Full range, range extender engaged > 500 km
CO2 emissions, combined cycle (est.) < 40 g/km
0 – 100 km/h acceleration < 9.0 seconds
Maximum speed > 200 km/h