Production versions of three new highly-efficient additions to the BlueMotion range have been unveiled ahead of the Frankfurt Motor Show.

The new Polo, Golf and Passat BlueMotion models emit just 87 g/km, 99 g/km and 114 g/km of CO 2 respectively while every variant is also capable of travelling a minimum of 840 miles on a single tank of fuel.

Each model bears the results of aerodynamic changes with new front bumper, sill extensions, a lower ride height and relocated air ducts behind the grille elements.  The result is less aerodyanamic drag leading to less loading on the engine and greater economy.

The most efficient model of all, the new Polo BlueMotion, adopts an all-new 1.2-litre three-cylinder common rail diesel engine developing 75 PS.  The new engine combined with longer gearing through the five-speed gearbox, regenerative braking and Stop-Start systems allows the new Polo BlueMotion to achieve a remarkable 85.6 mpg on the combined cycle while emitting 87 g/km of CO 2 to make it one of the most efficient vehicles currently on sale.

The new Golf BlueMotion is powered by a 1.6-litre TDI common rail diesel engine developing 105 PS.  As with the Polo, the Golf features optimised aerodynamics and longer gearing to maximise the efficiency of the engine.  Low rolling resistance tyres and automatic Stop-Start also play their part.

Through a series of small but effective changes the Golf BlueMotion emits just 99 g/km of CO 2 and can achieve a combined economy figure of 74.3 mpg which equates to a theoretical range of 899 miles on a single tank of fuel.

The Passat BlueMotion adopts a 1.6-litre common rail diesel engine developing 105 PS for the first time.  The new engine, replacing the existing 2.0-litre TDI unit currently fitted to the Passat BlueMotion, allows the new car to return 64.2 mpg on the combined cycle – up from the 57.6 mpg achieved by the outgoing car.  At the same time emissions fall from 128 g/km to just 114 g/km of CO 2 .

All three models are due to go on sale in the UK in early 2010 with prices and specifications due to be announced nearer the time.