Ask Honest John

Most recently answered co2 emissions questions
I recently purchased a 2010 Volkswagen Urban Fox 1.3, could you explain why the road fund licence is so high at £170 per year? I had assumed that being a newish vehicle it would be considerably less...
I have a 2009 Hyundai i20, and would like to change for something similar to the Citroen C3 - but would also like low emission around 110g/km, low road tax and better mpg. I would also like to be able...
I read with interest your article headed "Shelling out on Fuel" and the comments regarding Texaco. Valero has maintained the Texaco brand and general infrastructure. Texaco supply Super Plus Unleaded (SPUL)...
I have a T-registered Vauxhall Corsa three-cylinder, which has high emissions. It's done 56,000 miles, so still quite young in terms of mileage, with two owners from new. It was owned by a pensioner who...
In your answer to 'Three Pointed Tsar' on 6 October you said that it is better to buy a car with mileage too high than too low. Why?
I have just retaxed my wife's Volkswagen Golf Mark 5 Bluemotion, and my own 1997 Audi A4 TDI 110, both of which we've owned from new. Despite the fact that they run on similar 1.9-litre TDI engines, I...
I shall soon be changing my six-year-old Mercedes-Benz A180 and was wondering if you could suggest a few options. My main criteria are for low CO2 emissions, good fuel economy and excellent comfort, plus...
At the end of July 2012 I purchased an approved used car. It was advertised online with a CO2 rating of 89g/km (I retained a screen grab of the advert). However the V5C that I've received shows a rating...
I have a 2003 Audi A6 which has served us well for the last eight years. I am now considering replacing it with a 2010/2011 2-litre A6 Avant SE. I would value your comments on its suitability for mixed...
Can you tell me the technical reasons why a 2007 118d 3d is 123 g/km but after September it's 119 g/km when they seem identical cars? BMW could not say, only said cars manufactured after September 2007...
 

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