Would kinda make sense, around 2015 was the time when these things were starting to get fairly common in high end cars. 2015 was also a facelift year for the second gen Cayenne, so it may well be that they introduced new features. I'm assuming a lot of those cars are Cayennes, because it's the most commonly sold model and the stereotypical cars of New Russians are luxury cars and SUVs, not sports cars. Though of course that is just a stereotype.