US-market Audi cars with automatic transmissions may have a defeat device which obscures how much CO2 they really produce.
The Hyundai Ioniq has got the Toyota Prius in its sensibly styled sights. The Ioniq is smart looking and cheaper - but is it the better car?
Jaguar recalls its F-Pace over a potential fire risk, and Nissan recalls select models of the Qashqai, Juke, X-Trail and Pulsar.
Mitsubishi admits falsifying test data to get better fuel economy figures.
From April 2017 new car tax rules will see hybrid and low-emission car owners charged hundreds more while owners of gas-guzzling cars will pay thousands less.
The latest car reviews from Which?, including the gas-guzzling BMW 650i M Sport, the efficient new Prius and three Mercedes SUVs.
The latest version of the seven-seat people carrier, the Ford Grand C-Max, has been through our comprehensive lab tests. Is it a Best Buy?
Our latest car reviews have something for everyone: from superminis like the facelifted Kia Rio and Peugeot 208, to the hotly anticipated Jaguar XE.
It’s not just diesel cars that break emissions limits: petrol and hybrid cars are doing it, too. Which? reveals the worst offenders from our own tests.
We show how VW, Seat, Skoda and Audi diesel owners can check to see if their car has the emission-cheating defeat device inside.