UNITED KINGDOM – The UK Web site http://www.businesscar.co.uk has used data from www.cleangreencars.co.uk to determine the cleanest vehicle brands based on CO2 output. The average vehicle emissions from 2006-2007 were compared across the different manufacturers. The company then looked at the top three best-selling fleet models for each brand, and how their average emissions compared with the average for their sector (sourced from data firm Jato).

Here are the results: