Overall BMW seems to have beat Mercedes for the 2019 sales year for their passenger vehicles and SUV's (I would assume they aren't counting Sprinter Vans) by the small margin of about ~8,700 vehicles. The article speculates new competition for the GLS, the X7 can be seen as a sales boost for the BMW brand.
Here's the full article ->
https://www.bloomberg.com/amp/news/a...ime-since-2015