(not sure if this is known already)
I found a Mexican agency that reports on San Luis Potosi BMW production. See below July report.
On the left is July 2022/2023 production. On the right in cumulative Jan-July.
I'll do some more digging for the other months and see if production has been ramping up. Hoping as I'm waiting on my car.
As you can see 1,665 M2s were built in July and 10,519 have been built Jan-July. (plus 303 M2s produced in 2022 - all in December)