Note that the battery warranties aren't just for total failure, most are for at least 70% of original capacity at say 8/10 years or 100k (and are generally incr

Note that the battery warranties aren't just for total failure, most are for at least 70% of original capacity at say 8/10 years or 100k (and are generally increasing on newer models). BYD offer 125K miles on their blade battery for example. Coincidentally, studies have shown that MPG on ICE engines can drop as much as 40% after 10 years. You can also buy 3rd party battery warranties. As with any insurance product the price would be lower if everyone bought in. Would probably be a good subsidy for nations trying to encourage EV adoption.