New cars are emitting more CO₂ than older models

Grams of carbon dioxide per kilometre driven

Previous generation

Latest generation

0 g/km

50

100

150

Small petrol cars CO₂ rise: 14.7g/km

Mid-size diesel SUVs CO₂ rise: 10.6g/km

Mid-size petrol SUVs CO₂ rise: 32.2g/km

Large petrol-hybrid cars CO₂ rise: 28.2g/km