I was at the same event as jbraslins in post above. After 5 years tracking 335's this was the first time out in the M3. It's still heavy and has it's weak points, but I was very impressed with how it performed. Particularly loved the DCT. ZCP actually does pretty well on the track.
My best was a 1:47.2. Went with Toyo R888's over the NT01's this time due to thread splice concerns and so far so good but then again didn't push it too hard. Will probably be back up there next month to run full course.
E92 M3 DCT ZCP
Mods:
18x10 Apex ARC-8 wheels, with 275/35-18 Toyo R888
ESS Flash
AA Exhaust + AA HFC X-Pipe
Macht Schnell Dropin Filter + Scoops
Carbotech Pads: XP20's Front/XP10's Rear
Cantrell Motorsports Front Brake Ducting
Pins pulled, Camber -1.4 Front and -1.8 Rear