I am getting my sig x serviced and they have me a titanium (basically taupe) model x loaner, obviously 2016 since that color was discontinued later, VIN ends in about ~8000 , and the VERY FIRST THING I NOTICED is it had MCU1. (Once you've upgraded to MCU2, the older one is just punishing, there's no comparison.). Anyway it's still on 2020.48.37.2.