Do plug-in fuel saving devices actually work?

Can the 'Eco-Chip' fuel saving device plugged into the OBD2 socket cause damage to vehicle systems, including PHEVs?

Which petrol car has the best MPG?

I am looking to purchase a 3-4 year old car. What is the best petrol vehicle that provides 55 miles to the gallon?

Is my Honda Jazz Hybrid delivering the right fuel consumption?

I bought my new Honda Jazz from a main dealer in 2022. The main reason I decided to change from my previous three-year-old year old Jazz was the expected over 60mpg. For the first several weeks the car...

Can you recommend a reliable and efficient used car for £10,000?

I want to upgrade my 2006 Toyota Corrolla. I have £10,000 to spend and require a reliable, stylish and economical car that will accommodate my wife and daughter. My daily commute is 30 miles and I also...

Best £16,000 hatchback for comfort and fuel economy?

I am looking for a petrol automatic five-door hatchback that is not a crossover, too large or firm riding. The car must be comfortable, well-equipped, reasonably economical, reliable and ULEZ-compliant. Are...

Are PHEVs expensive to run and maintain?

I haven't seen any discussion on maintenance costs for PHEV. Presumably, it must be quite expensive since you are maintaining an EV plus an ICE?

What petrol gives the best MPG?

Do you know of any research comparing the mpg obtainable from different fuel brands? My local fuel garage has changed to a lesser-known brand and I feel I am getting fewer miles out of a tank full. My...

Is engine remapping a good idea?

Is remapping your car a good idea?

Most fuel efficient used car under £20,000?

What are the best used cars for fuel economy for less than £20,000?

Are hybrid cars worthwhile?

Is it worth buying a hybrid car?