[Mountain]

Originally Posted by apexit53

http://gmauthority.com/blog/2017/09/...-january-2018/

This might be why there weren't any in the race this weekend.

Old article, but good point. Probably due to the lead time on parts. Hopefully we see them popping up in IMSA at Sebring, or at least Mid-Ohio (because I hope to attend) and in PWC for St Pete or CoTA.