Vauxhall is flexing...

Vauxhall is flexing its creative muscles with the next Zafira – and here’s the proof! Sister company Opel unч­veiled this stunning concept car at the Frankfurt Motor Show. And, according to the maker, it gives strong hints as to how the next generation of the big-selling MPV will look.

Called the Flextreme, the show vehicle has a clever electric powerplant and innovative barn-style doors which open out 90 degrees.

However, unlike rival systems in the Mazda RX-8 and MINI Clubч­man, the rear ‘FlexDoors’ can be operated independently from those at the front. As the practical set-up received an excellent response in cusч­tomer clinics, the design has been patented, so it’s likely to be used on future production models.

Another clever feature is a hi-tech variation on the FlexFix carrying tray, which extends from the tailgate of the latest Corsa and Antara models. Rather than holding a set of bicycles, however, on the Flextreme the system incorporates a pair of specially deч­signed Segway two-wheel electric personal mobility vehicles, which can be stowed in the boot.

But the concept car’s major innovation is its electric powerplant. The advanced unit uses a 1.3-litre CDTI engine that isn’t even connected to the wheels. Instead, it drives an electric generator and runs at constant revs to keep the on-board batteries topped up in the most efficient way possible. Once fully charged, the high-capacity lithium-ion cells provide a maximum range of 34 miles.

Although that doesn’t sound like very much, Vauxhall claims 75 per cent of commutes fall within this range. What’s more, the technology is such that the batteries can be charged from the mains in only three hours. When the car is run on plug-in power alone, its net CO2 emissions work out at a mere 40g/km.

This powertrain technology is a development of the system fitted to the Chevrolet Volt show car, which made its debut at the Detroit expo in January. A fourth Volt-based concept will arrive early next year, and parent company GM says that it is committed to building a production vehicle which features the innovative petrol/electric set-up in 2010.

In the meantime, Vauxhall is preparing to unveil its all-new Vectra replacement at the British Motor Show next summer. A source within the firm revealed to Auto Express that, after months of debate, the decision has finally been made to call it the Insignia. This will be officially announced in the next few months.