Elusive document in the glove box (a.k.a. owner's manual.) 500 miles under 55 mph and avoid steady throttle during break-in period. 200 miles to season the brake pads before hard braking, something like that...you should read. Not sure how 55 mph translates with a M6, but what the heck, I am following it. Sounds an awful lot like exactly what my 96 LT1 and 99LS1 manuals said. Couldn't hurt.
The first GTO I test drove, the salesman punched before the temp gauge is moved off the bottom. I traveled 100 miles to buy a red/red A4 only to find it had 250 miles on it! Not a deal breaker, but I managed to buy one right off the truck, six miles on the OD, no body test drove. There will be more metal in your pan from the first 500 miles than the next 10,000. Must mean something.
I always follow the owners manual, figure they know more than me. I can tell you from experience that this car isn't remotely fast if you shift below 4K RPM!
450 miles and counting...