Originally developed by Alfa owner Fiat for the 500 city car, the two-cylinder TwinAir engine is a former International Engine of the Year because it offered the lowest CO2 emissions from any petrol engine on sale at the time.
The 875cc engine will now be sold in the Alfa Romeo MiTo and its CO2 emissions of under 100g/km means it will be exempt from UK road tax and the London congestion charge.
It is now available in the three-door city car alongside the more powerful MultiAir petrol engines and the range of MultiJet diesel engines, which also offer a road tax-free option.
The TwinAir engine also delivers fuel economy of 67.3mpg and falls into the ten per cent category of Benefit-In-Kind (BIK) tax.
The new 2012 Alfa MiTo TwinAir has been unveiled at the Goodwood Festival of Speed, where it is being launched with the help of three live acoustic performances.
Ocean Colour Scene’s Steve Cradock, The Charlatan’s duo Tim Burgess and Mark Collins, and indie group Marner Brown will perform over the three days of Goodwood this week.
The Alfa Romeo MiTo TwinAir can be ordered now at Perrys Alfa Romeo of Amersham starting from £13,205 for the ‘Sprint’ specification.
Standard Alfa Romeo MiTo TwinAir models start from £12,500 for the entry-level three-door version, which was first launched in the UK in 2009.
It is one of a handful of Alfa Romeo models sold in the UK. The Alfa Romeo Giulietta hatchback was introduced in 2010 as a premium family car while the Alfa Romeo 159 saloon makes up the Alfa Romeo UK model range.