Europe’s electric car boom is at risk of stalling, jeopardising the sales of 18 million battery electric vehicles, new data shows. EU clean car rules have driven plug-in vehicle sales to almost one-fifth of the market. But weak targets between 2022 and 2030 will not require carmakers to deliver on their EV production plans and could result in 55 million extra tonnes of CO2 pollution – more than the annual emissions of all the cars in Spain, according to Transport & Environment (T&E) analysis.