Guardian: Drivers who find that the fuel efficiency in their new car doesn't match up to the claims made by the manufacturer, now know it is not their driving to blame. A new report reveals that carmakers routinely manipulate official UN-backed miles/gallons tests, with a series of tricks including stripping the car down to weigh as little as possible, overinflating the tyres and testing in the thin air at high-altitude tracks.
The tricks of the trade are listed in a report by the Transport & Environment...