I have just noticed that the warranties are probably only workmanship warranties, to protect consumers against defects (in the manufacture, assembly, delivery and servicing of their EV). They probably don’t protect consumers against deterioration of their EV battery health/performance?

A 2016 NZ estimate of a second hand Nissan Leaf (compared against a second hand Nissan Pulsar), the battery replacement costs about as much as the savings in electricity costs i.e. the Leaf is quite possibly no better for the environment overall? Scroll to bottom of https://genless.govt.nz/assets/Everyone-Resources/ev-battery... - although it strongly depends on whether replacement battery prices dropped or how electricity prices moved.