You've already read the great write up from Raja (Rashed) on his un4gettable weekend with the F32 M Sport. Here's quick video on the other lucky guy who got a 435i M Sport for the weekend.
Raja's original write up and photos are available here -> http://www.f30post.com/forums/showthread.php?t=881491
On August 24, 2013, we visited BMW super fan Nathan Risch in Palm Springs, CA with the first-ever BMW 4 Series for the weekend—making him one of the first to drive in it in America. Watch as he hits the road in Palm Springs and The Thermal Club Racetrack.