As the Government ponders how to tax electric cars, I’m surprised by how little debate is being directed at rewarding efficiency – a glaring omission, considering the industry’s focus (driven in part by customer demand) on prioritising both bigger and higher-riding cars, which in both cases are typically more profitable but more consumptive.

Why is this important? Achieving zero tailpipe emissions is merely a step in the right direction until our vehicles are powered entirely by green energy.