[rafaeldelrey]

Originally Posted by Cmassey3

How are xDrive cars holding up to track use? My mind tells me to seek out RWD, but the CS is limited to AWD and seems to be more available than the CSL plus no pesky matte paint.

BMW Ms are pretty good track weapons. You drive to the track, have fun, and return home driving. I have driven 2 new xDrive (M4 conv and M3 CS) in Sebring, with 100+ weather. Both had zero issues when 100% stock. I had brake fluid replaced incorrectly in the M4, and had brake fade. So make sure you have a shop who knows the right procedures.
You will find out the stock M compound brake pads don't last. With my M3 CS, I worn all pads in the first trackday, right after break-in. I m now using Pagid RSL29 that seem to be holding better.
With a better brake fluid like the Motul 700, and the pagid, I reached the point of receiving a "Brake high load, stop right now or you will die" message, but no brake fade. Some suggested removing the brake temp sensor, like people do with the F generation, but I like the safe guard. I had too much scary situations with brake fade in other cars. A cool down lap here and there should be enough, or a brake cooler kit.

In sum, you can race 100% stock if you want, but I would invest in brake fluid and pads.