My most recent purchase was a three-year-old Skoda which cost just under £7000. I'd love to replace it at some point with an EV but I don't see how the same sort of second-hand price bracket could exist. By most accounts a Li-ion battery has a lifetime of 2-3 years (or about 300-400 charge cycles) so a second-hand plug-in over three years old would almost certainly need a new battery. The cost of the battery pack alone would come out at close to £5000 for even a modest car such as the Leaf. I certainly wouldn't want to go down the battery leasing route - the monthly leasing cost would be around the same as my current petrol costs, so would immediately negate any running cost savings.