For the third year in a row the drive system powering the BMW i8 (fuel consumption combined: 2.1 l/100 km [134.5 mpg imp]*; CO2 emissions combined: 49.0 g/km*) has triumphed in its class – the 1.4-litre to 1.8-litre displacement category – at the International Engine of the Year Awards.

This award provides further evidence of the performance potential of the Efficient Dynamics technology package, which since 2007 has enabled a continuous enhancement of driving pleasure while at the same time cutting fuel consumption and emissions.

The plug-in hybrid drive system powering the BMW i8 combines the performance of a sports car with the fuel economy of a far smaller model. The three-cylinder combustion engine in the BMWΒ i8 develops 170Β kW/231Β hp and drives the rear wheels, while the 96Β kW/131Β hp electric motor draws its energy from a lithium-ion battery, which can be charged from a conventional domestic power socket and sends its power to the front axle.

This bespoke plug-in hybrid system, developed and produced by the BMWΒ Group, enables a range of up to 37Β kilometres (23Β miles) in the EU test cycle and a top speed of 120Β km/h (75Β mph) on electric power alone, coupled with a β€œglued-to-the-road” all-wheel driving experience headlined by powerful acceleration and a dynamically-biased distribution of power through keenly taken corners.

* Fuel consumption and CO2 figures were calculated based on the EU test cycle.

The higher-output of the two power sources drives the rear wheels and uses the electric boost from the hybrid system to deliver hallmark BMW driving pleasure while at the same time offering groundbreaking levels of efficiency. The sprint from 0Β toΒ 100Β km/h (62Β mph) takes just 4.4Β seconds, yet combined fuel consumption – as calculated in the EU test cycle for plug-in hybrid vehicles – stands at 2.1Β litres per 100Β kilometres (134.5Β mpg imp) plus 11.9Β kWh of electricity. This equates to CO2 emissions of 49Β grams per kilometre.

The International Engine of the Year Awards were launched in 1999, since when a total of 68 class and overall wins have gone to power units developed for BMW models. Each year an expert panel of judges, this time comprising 58 motoring journalists from 31 countries, selects the best examples in numerous categories. The prize-winners were presented with their awards on Wednesday, 21Β June 2017 against the backdrop of the Engine Expo trade fair in Stuttgart.

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