Ask Honest John

Most recently answered fuel economy questions
Is there a rule of thumb about how much less efficient a plug-in hybrid is when the battery runs out compared to a combustion engine equivalent? For example, if a conventional petrol or diesel model did...
With the coming of electric vehicles, wouldn’t it be better to start referring to all vehicles economy as MP£ or Miles per Euro as standard rather than mpg? As an example, my Skoda Fabia Estate diesel...
Are the mpg figures for the Jaguar F-Pace petrol plug-in believable? How are they calculated?
Do you have a top 10 or similar of most economical cars? It would be nice to see a list that would have specific engines included, i.e. Ford Focus 1.5 diesel.
What motorhomes see the best fuel economy?
What’s the best car for real-world economy on a 130-mile round trip commute.
Can you please tell me what the mpg is for a Honda CV-R 2.0 4WD?
I am looking to buy a nearly new second-hand car. I am looking for which vehicles to consider in terms of fuel economy/looks/value for money/manageable running costs, with a maximum budget of £20,000 to...
I'm thinking of buying a Dacia Duster. The salesperson at the dealer has told me there is a new LPG version of the Duster. What do you think about the Bi-Fuel Duster? Should I buy one?
I'm very undecided about which car I should go for. I'm looking for a big family car (estates or SUV) for regular short motorway trips. I initially wanted a diesel but concerned about the various issues...