Audi is adding a three-cylinder petrol engine to its range for the first time.

The one-litre unit will debut in the revised A1 early next year. Audi claims that the turbocharged and directly injected engine – which will be designated 1.0 TFSI – will be capable of returning at least 60mpg with CO2 emissions of 99g/km. Power will be 95PS – a 6PS increase over the 1.2 TFSI that it replaces.

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The 1.4-litre TFSI engine has been improved with power up from 122PS to 125PS and CO2 down from 124g/km to 115g and the cylinder-on-demand alternative now offers 150PS with CO2 output of 112g/km.

CO2 output on the 1.6 TDI has been reduced from 99g/km to 92g/km with fuel economy improving from 74.3mpg to up to 80.7mpg on the combined cycle test.

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