What is the WLTP fuel economy and emissions test?


There was plenty of disruption in 2018 when the WLTP rules for new cars came into effect. But what are they and what does it mean for car buyers?
Is your car exempt from London’s Ultra-Low Emissions Zone charges?

Is your car exempt from London's ULEZ?


In April, London will become the first city in the world to establish a dedicated “ultra low emission zone” (ULEZ) — is your car affected?
Can you drive with a flat tyre?

Can you drive with a flat tyre?


Tyres are vital to the safety of your car. As the only part of the vehicle that touches the road, any defects or excessive wear can lead to...
Car Clinic: Can additives reduce the pollution from a diesel car?

Car Clinic: Can additives reduce diesel pollution?


"Can fuel additives or retrofitted devices make a diesel car less polluting? And will removing biofuel reduce NOx emissions?"
Car Clinic: Will a 1.6-litre petrol Vauxhall Astra automatic pull a caravan?

Car Clinic: Will petrol auto car pull a caravan?


I want to buy a 14/15-plate automatic Vauxhall Astra to pull a caravan with a maximum laden weight of 1,172kg...
Car Clinic: What do I need to know about Paris car emissions rules before driving there?

Car Clinic: What are the Paris emissions rules?


"I am driving to Paris and have heard of new anti-pollution rules in the city. Do I need to do anything before I set off?"
Car Clinic: My Nissan X-Trail will not shift into seventh gear

Car Clinic: My X-Trail won't shift into seventh


My 2015 Nissan X-Trail will not shift into seventh gear in automatic mode, which I think is reducing the fuel economy. Why?
Car Clinic: Are owners of the new Volvo XC90 reporting many faults?

Car Clinic: Are XC90 owners reporting faults?


I was about to buy a Volvo XC90 when I noticed online reports about faults, plus lots of classifieds for six-month-old models ...
Car Clinic: Does the Sport setting on a Mercedes save fuel around town?

Car Clinic: Does the Sport setting save fuel?


At a speed awareness course my husband was told that using the Sport setting on our automatic Mercedes in town saves petrol. My garage disagreed.
Can I change the 18in tyres on my Ford S-Max Titanium X Sport to get a softer ride?

Car Clinic: Changing wheel size for a softer ride


Can I change the 18in tyres on my Ford S-Max Titanium X Sport to get a softer ride?
Car Clinic: Can a child travel in a car without a car seat?

Car Clinic: Can a child travel without a car seat?


Q. I was asked to drive one of my eight-year-old daughter’s friends home in my car without a car seat. Is this legal?
Car Clinic: What's the best portable sat nav device?

Car Clinic: What's the best portable sat nav device?


Q. My boyfriend and I plan to travel around the UK this summer in our campervan. To avoid squabbles, we need a (reasonably priced) portable sat nav...
Why do cars not achieve the claimed MPG figure?

Why do cars not achieve the claimed MPG figure?


A Peugeot I test-drove recently claimed 90mpg; I managed 47mpg. Why the discrepancy?