China’s tolerance for polluting vehicles – the market is dominated by cars powered by petrol engines – is now drawing to an end. A rollout of new legislation due to be completed by 2020 aims to tighten China’s rules on cars’ emissions and fuel economy, bringing them into line with western countries and thereby curbing the industry’s contribution to global warming and air pollution, according to the Financial Times. The legislation is expected by some analysts to hit the profits of companies operating in what is the world’s largest automobile market, but VW and other overseas carmakers are better placed than their domestic rivals to cope with China’s shift to stricter standards, says an analyst at Macquarie.