THE high-pitched whirr of an electric car may not stir the soul like the bellow and growl of an internal combustion engine (ICE). But to compensate, electric motors give even the humblest cars explosive acceleration. Electric cars are similarly set for rapid forward thrust. Improving technology and tightening regulations on emissions from ICEs is about to propel electric vehicles (EVs) from a niche to the mainstream. After more than a century of reliance on fossil fuels, however, the route from petrol power to volts will be a tough one for carmakers to navigate.

The change of gear is recent. One car in a hundred sold today is powered by electricity. The proportion of EVs on the world’s roads is still well below 1%. Most forecasters had reckoned that by 2025 that would rise to around 4%. Those estimates are undergoing a big overhaul as carmakers announce huge expansions in their production of EVs. Morgan Stanley, a bank, now says that by 2025 EV sales will hit 7m a year and make up 7% of vehicles on the road. Exane BNP Paribas, another bank, reckons that it could be more like 11% (see chart). But as carmakers plan for ever more battery power, even...Continue reading