I have a Honda Insight hybrid, mainly IC, part electric, which is 20 years old and has recently required a new traction battery, the battery replacement cost is therefore a reasonable £115 per year of service, money more than recouped by £0 VED tax and exceptional mpg returns of the car, 40 mpg more than even a Jazz.
I am very wary of being an early adopter of the full EV, they are so expensive in relation to their utility of range and above all else their potential for massive depreciation. I am reminded of the lemming like dash for digital cameras in the late 1990s. Cameras enthusiasts disposing of (essentially throwing away) high quality SLR film cameras for £100 and buying £500 digital cameras, those £500 digital cameras simply not good enough in a technical sense, images no better than modest point and click pocket film cameras for £30. Those £500 digital camera were very soon worthless.
By the same thinking, I would not go out and spend £35000 on a full EV when i can have a new 2021 Jazz SE for £19500, I would wait 10 to 15 years (the typical life of a Jazz) and see how the EV advances in range and price. I am satisfied with the economics of my hybrid car , but the sums for a full EV purchase do not add up for the present or the foreseeable future