My view may be tainted because I’m following a facebook group of Tesla owners needing a new battery just after the warranty runs out. Mostly 85kWh from 2014 and 2015. No reports yet for my 90kWh battery from 2016, so it’s difficult to assess what the risk is. I don’t want to keep driving AP1 until my Model S’s wheels fall off, I want the new suspension, the 50% longer range/lower consumption etc. The battery warranty expiration is a good excuse for an upgrade. Given that I want to upgrade, it makes sense to avoid the cost of a replacement battery.Would be nice if we could find some statistics, I personally believe this to be very rare… -