Volkswagen has added a new 1.5-litre TSI ACT engine to the Golf range, which promises fuel consumption of 58mpg.

The petrol engine will be cheaper than an equivalent diesel and has CO2 emissions from 110g/km.

It has an output of 130PS and will also be available for other Volkswagen models in the future.

The efficiency is achieved through a new TSI Miller combustion process and the use of a high-tech turbocharger with variable turbine geometry.

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