The PHEV champion is one of the most energy-efficient cars currently available. It is the Hyundai Ioniq, which spends just 270 Wh/mi. Sold for £28,395, it is also the cheapest PHEV of this list. Nothing fairer for this 554-mi range vehicle to get the highest rating: 7.5.

Do you agree with Select Car Leasing’s ratings? Would you have considered other aspects? Feel free to tell us what you think about that in the comments.