When I ordered in Jan I Tesla told me car will not come with UMC, so I bought one secondhand. Then learned that cars built on or before 26/2 will come with UMC. My build date is 26/2, so it's possible I'll get another one with the car. Then Tesla send me the email so I ordered one for free. Lookslike I am going end up with either 2 or 3 UMC's !