Steve Tomlin, who runs a Renault dealership in Britain, says sales of the Zoe small electric car have shot up this year, a turnaround he partly puts down to a fading of “range anxiety”, the fear of running out of power mid-journey. The revamped model, which has accounted for a third of Tomlin’s sales for a couple of months this year, has a range of 400km (249-mile). By contrast, the ...