However committed we are to caring for the environment, it’s an undeniable truth that the car is an essential part of life for most of us. Some industry analysts estimate there are more than 1.4 billion vehicles on the world’s roads, a number that is only expected to increase. The effects of so many vehicles on the planet are well-documented, and car manufacturers have begun to focus on electric and hybrid models as a result. Governments too are bringing in laws to make motoring more eco-friendly; in the UK, for example, no new cars powered solely by petrol or diesel will be sold from 2030. While choosing to buy an electric or hybrid car is the obvious way to become...