That is exactly same as I did. 2017 X6M with under 5K miles on a true blue/red Trackhawk. I had traded a 2016 RRS on the X6M. Did deal on that long distance. After taking posession of the BMW I had to look at the window sticker to confirm I had a 8 and not a 6 cylinder motor. I swear it sounded like a late 60's VW. It was fast and handled great but the exhaust note ruined it.