Vehicles produce CO2 when they use fuel. The amount of CO2 produced is directly linked to how much fuel it consumes. Excess levels of CO2 can be harmful to humans and the environment.

We have 34 new Seat Leon cars available from offical Seat dealers. Browse now, and find the perfect new Seat Leon near you.

It'll accelerate to 62mph in 10.8 seconds with the manual gearbox (10.6 seconds with the auto transmission), while it's a lot more refined than similar three-cylinder engines used in rival cars. If ...

The SEAT Leon achieved a full five-star Euro NCAP ... from the car in front when travelling along the motorway, plus automatic lights and rain-sensing wipers. It’s a shame that the Safety ...