In an independent industry-wide study conducted by www.cleangreencars.co.uk, the BMW model range emerged the cleanest of premium auto makers in the production of CO2 emissions. Additionally, the data showed BMW also had the most improved CO2 emissions average of any premium manufacturer.
Looking into the average emissions of the total model range of each premium auto maker found that from the period January 2008 to June 2008, BMW recorded an average of 161.64g/km. By comparison the model range averages for Audi and Mercedes were 177.36g/km and 192.85g/km respectively. Even Lexus with its hybrid-based model line-up only managed an average of 194.85g/km, while Jaguar topped 200g/km and Porsche recorded the worst average of 275.64g/km.
Additionally, over the same time frame, BMW improved its average emissions by 11.34 per cent compared to Audi by just 5.78 per cent and Mercedes by 4.13 per cent. Lexus and Jaguar only improved by 2.16 per cent and 2.04 per cent respectively, while Porsche actually increased its average model range emissions by 0.63 per cent.
BMW has been touting this achievement for the past few years through its EfficientDynamics programme. In an effort to keep ahead of EU guidelines, BMW future plans include NOx storage capability within a catalytic converter. Engineers are also finalizing drivetrain configurations to meet the likely EU6 legislation due to come into effect in 2014.
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