Ask Honest John

Most recently answered co2 emissions questions
Is this table still accurate? www.honestjohn.co.uk/road-tax/porsche/cayenne-2003 According to the DVLA website below, band K includes cars that have a CO2 figure over 225g/km but were registered before...
What would be a recommended 2008 saloon car to purchase that will fulfil these requirements: diesel engine 1.9l to 2.2l, low C02 emission (<140 g/km, maximum of 155g/km), 130-150bhp, six-speed gearbox...
I am considering selling my 2005 Vauxhall Zafira B 1.9CDTi automatic and buying an alternative MPV with less CO2. Which automatic is best to buy? I don't mind if its a petrol car.
My partner has a Volkswagen Eos 2.0 TDI 140 PS DSG and I have a Volkswagen Passat Estate 2.0 TDI 140 PS Manual. She pays £200 a year car tax and I pay £155. We did wonder why the car tax should be different....
I have an Audi A4 2.0 FSI automatic, registered in September 2004 with 23,500 miles. It went for its annual service and MOT to a local Audi dealer and failed the MOT due to emissions. They said it needed...
I have a Toyota Yaris 1.4M D-4D TR which I bought new in 2008. I have been pleased with the car, except for its lack of pulling power going up hills. For this reason I am thinking of buying a Volvo C30...
I have a 2001 Vauxhall Corsa three-cylinder with about 70,000 miles on the clock. The emissions light has come on and stayed on. It seems to run OK - no coughing and spluttering. My local garage has done...
Has anyone ever done the CO2 calculations on speed bumps? If you decelerate and accelerate (even be it sensibly) there is a CO2 implication in the extra fuel and brake wear (presumably CO2 is generated...
I am looking to replace my VW Polo and would be grateful for your advice on the best small car with zero road tax I have been thinking about the Toyota Aygo. My driving is mainly around the town and I...
My sister is starting a job with a reputable energy company, and she feels that she needs to drive something economical and efficient. However, my mother wants her to drive something as safe as possible....