Fuel Economy of post-2008 cars

You mention in the current stats that newer cars fair worse on fuel economy compared to official figures - do you have the average drop for newer models from 2008?

Asked on 11 January 2013 by PopeyFM

Answered by Honest John
Legitimate question. You can clearly see on the full stats but I'm not prepared to release them to an individual enquirer.

Breakdowns appear on the site: www.honestjohn.co.uk/realmpg/

The only cars that achieved over 100% were all older models except for the Honda Civic Type R from 2007. The biggest variations of 71% to 76% are all new models except for the 2005 Mercedes-Benz B-Class.
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