Unfortunately, you (and many millions of others) have fallen victim to EC legislation. The relevant EC Directive compels manufacturers to use a prescribed test to assess the CO2 emissions and thus the fuel economy of their vehicles and compels manufacturers and dealers to quote only the figures thus achieved. Of course, manufacturers have optimised their car's performance for these tests whether or not the results bear any resemblance to what real motorists can expect in real life.

So you are a victim of EC Law, not of misrepresentation by the importer of your car or the dealer who sold it to you. To find out the true real life fuel economy of your car, go to The Real Life Fuel Economy Register at www.honestjohn.co.uk and use the opportunity to register your own fuel economy and adjust the overall average figure.