[ttimbo]

I think you'll be fine. BMW's model year change is usually late in the calendar year from memory, so features that it adds/(removes) occur in builds after around Aug-Sept. Hence, builds after that date (and sorry, don't know precisely for 2018) are referred to as 2019 MY (model year) cars, even though built in 2018

It's well-known in motoring circles that there are differences between the model year of a car, and its make year. That's why you often see 2019 MY BMW xxx versus 2019 build BMW xxx etc. A helpful BMW online agent should know all this and have taken the time to explain.