Volkswagen has unveiled three new highly-efficient additions to its low-emission BlueMotion range.

The new Polo, Golf and Passat BlueMotion models emit just 87 g/km, 99 g/km and 114 g/km of CO2 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.  These modifications result in less aerodynamic drag, leading to less loading on the engine and greater fuel 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 85.6 mpg on the combined cycle while emitting 87 g/km of CO2.

The new Golf BlueMotion is powered by a 1.6-litre TDI common rail diesel engine developing 105 PS and through a series of small but effective changes it emits just 99 g/km of CO2 and can achieve a combined economy figure of 74.3 mpg.

The new Passat BlueMotion also 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 and allows the new car to return 64.2 mpg on the combined cycle.