Nobody will worry about that until its too late. Its about making money now.
Who will buy a ten year old electric car? Just saying.
Is anyone interested in any 10 year old car of the standard family type? I would have thought a basically much simpler electric car would be a better proosition at 10 years than a petrol one.
Anyway, it doesnt matter. You are going that way like it or not. HMG says so.