UK urged to keep EV rules strong as PHEV loophole adds 17 million tonnes of CO2 by 2030
theguardian.comCampaigners are pushing the UK government not to weaken electric vehicle sales rules again, after new data shows that last year's policy changes could add 17 million tonnes of CO2 by 2030. The zero-emission vehicle mandate was relaxed in 2025, allowing carmakers to sell more plug-in hybrids (PHEVs) instead of full battery electric cars. That shift has already driven a 48% rise in PHEV sales this year, but real-world driving data shows many PHEV owners rarely use the battery mode, meaning actual emissions are much higher than official tests suggest. The extra 59 billion miles driven on petrol and diesel under the relaxed rules equals about the annual CO2 output of Croatia or all Ryanair flights from Europe. Charging industry groups warn that further weakening would undermine billions in infrastructure investment, since fewer electric cars means lower revenue for charge point operators. Carmakers are lobbying for another review, but environmental groups say the mandate needs to hold firm to keep the transition on track and avoid locking in higher emissions for years.
