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.

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.

This I realised when I clambered into the latest addition to Alfa Romeo’s 159 range the other evening. Sat in the driver’s seat in the dark, I located the slot for the funky electronic ‘key ...