On September 19th, I saw a black/dark blue F10 M5 on Yellowstone NP's grand loop along the lake. You flashed at me as I was driving my E90 M3. I think you had a friend driving a 7-series following you. This was the day after a freak snowstorm in the park.
Wondering if owner is a member? If you were staying at the Lake Lodge, we probably missed each other by a day, I had just checked out.
I was driving across the country from DC to SF!
here is my trip log:
http://www.m3post.com/forums/showthread.php?t=894582
