Most bright red sports cars do not make much of their green credentials. Yet a test run in Bicester, Oxfordshire, by the startup Zero Petroleum last month gave a glimpse of a future in which combustion engines did not add new carbon to the atmosphere. The car was running on e-fuel: petrol made using electricity, hydrogen from water, and carbon captured from the air.
The automotive industry is steadily moving away from fossil fuels, and a firm global consensus has emerged that battery electric vehicles are the way forward. Yet that consensus took a knock in March when the EU – to the shock of energy experts, environmental campaigners and much of the car industry – opened a small back door to e-fuels.
