Analysis of new vehicles shows steady ‘car bloat’ that researchers say could cause extra 2,600 crash deaths a year by 2040

Cars have grown 1.2cm longer, 0.5cm taller and 0.5cm wider each year on average since 2000, analysis of new vehicles sold in Europe has found, in what green groups call “relentless carspreading”.

The increase in size, which leaves people more likely to be killed in a crash and increases emissions that hurt lungs and heat the planet, has progressed at a roughly steady rate for two and half decades even as family sizes have fallen, the campaign group Transport & Environment (T&E) found.