Geneva 2008: Volkswagen Golf TDI Hybrid

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Volkswagen has unveiled a diesel-electric hybrid Golf capable of returning an astonishing 83mpg and emitting just 89g/km of carbon dioxide.

The Golf TDI Hybrid has a three-cylinder, 1.2-litre diesel engine (75bhp, 132lb ft) and an electric motor developing 27bhp and 103lb ft. The motor can power the car from start-up and at low speeds, with the diesel engine only kicking in at higher speed or when faster acceleration is needed. Both powerplants work with Volkswagen's new seven-speed DSG sequential-shift gearbox.

Features unique to this hybrid are a display showing information on power source and charging, a unique low-drag grille, lowered suspension and front splitter, and subtle TDI-Hybrid badging.

This isn't Volkswagen's first hybrid: it experimented with a trial petrol-electric fleet in the early 90s and it has been developing diesel-electric units for some years (one took part in the 2004 Challenge Bibendum eco-car rally in Shanghai). This is the first near-production example, however, and the first of many.

The technology will be used in a number of Volkswagen Group models, including the Jetta saloon - which sells in greater numbers in the US than the 'Rabbit' - and the Audi A3.

The diesel-electric powertrain has been developed specifically with the US market in mind, and California in particular. As well as the Euro 5 emissions criteria, it will meet the US BIN 5 requirements for sale in all 50 states.