The main thing about a break-in period is not to stay at a steady RPM for extended periods of time and not go over 80% of full throttle. The amount of miles or time you do this is the argument. I chose 2,000 miles. Motorcycles I go 500 miles. However i found nothing in the owners manual that even comes close to a break-in period. Race cars are race cars, they tear down their engines on a regular basis, befor damage occurs. I plan on getting many many miles out of my MKV. I truley believe that running it hard with no break-in period, shortens the life of your drivetrain.