Why is my wife's new A Class Mercedes-Benz returning fuel economy 25 per cent below the advertised figures?

I bought a new Mercedes-Benz A160 Blue Efficiency model for my wife's use a year ago. From the outset it was obvious the fuel economy was going to be nowhere near that advertised. It has been in to the...

My Jaguar XF returns 40-41mpg which is close to the official figure of 42mpg.

Some manufacturers seem to manage to make their cars deliver closer to the official fuel figures than others. As the owner of a Jaguar XF diesel I get a steady 40 - 41 mpg on mixed (60 per cent dual carriageway...

My Mercedes-Benz E220 Coupe returned almost 60mpg on a long trip - which cars can beat that?

Your correspondent LD of Weybridge should ditch his Fiat 500 TwinAir and buy a Mercedes-Benz. I have just driven my four-month-old E220 Coupe from Northallerton to Winchester, at motorway speeds throughout,...

Do current emissions figures underestimate fuel economy from an emissions and a taxation point of view?

You wrote that the issue of certified fuel economy figures is about to explode in the face of the EC. It seems to me that this is more likely to explode in the face of the motorist. If, as regularly experienced,...

Why don't you differentiate between different fuel economy figures on your 'Real MPG' database?

I applaud your efforts to record achieved MPG figures against the manufacturers' quoted numbers at www.honestjohn.co.uk/realmpg. The mpg readout on my BMW 318 computer is consistently four to five mpg...

Our troublesome new Skoda Fabia has been in the dealer's for seven weeks - can we request a full refund?

In November 2010 we bought a new Skoda Fabia Greenline estate. On 10 April this year, the car broke down and we had be towed home by the RAC. The following day, the RAC towed the car from our home to the...

Should I expect better fuel economy from my Mercedes-Benz C200 CDi Estate?

Last September I replaced my C220CDi Mercedes-Benz Estate (85,000 miles) with a Blue Efficiency C200 CDi Mercedes Estate – both diesel automatics. Over the life of my old car I averaged about 37mpg and...

I've created a graph showing the long-term fuel economy figures for my Audi A6.

You ran an email on the usefulness and accuracy of official fuel economy figures, and mentioned you were adding the ability to log real life fuel consumption figures on your website. Like some of your...

What could be causing a water leak in the boot of my BMW 320d saloon?

I have a 2008 BMW 320d saloon and have found water in the boot. It has gathered in the plastic tray sunk in the floor on the left side. I took the tray out to empty it and found more water under boot floor....

Is it uneconomical to use the cruise control on my Skoda Fabia 3?

I drive a Skoda Fabia 3 which has cruise control. My husband says that it is uneconomic to use. Is he right?