For those who did the European delivery, did you really putter around the EU keeping the revs under 3-4K RPM for 3000 kilometers? Seems to defeat the point of enjoying a Porsche on European roads.
Seems to me this boils down to a personal choice: Do you abide by the manufacturers written instructions for running/breaking in a new engine or do you not comply and potentially suffer the consequences of higher oil consumption, maybe somewhat lower compression ratios, etc. I am not sure I understand why the geographical location matters as most people want to enjoy these wonderful machines from day zero no matter where they are.
I am certain all manufacturers requirements for run in are primarily based on statistical data and not a pull it out the butt guess. I strongly suspect they do this by looking very closely at probability and expense of in warranty failures as a function of how the engine is initially operated. I am also sure there are secondary marketing considerations pushing in the other direction as no manufacturer wants to unnecessarily inconvenience the customer.
The dealer that sold me my Boxster told me most Porsche sales are two year leases. This response was prompted when I noticed how many two year old used cars were on the showroom floor. I guess someone that only expects to keep a car for two years and low mileage probably has no overwhelming reason to care about the break in period. I bought my Boxster and intend to enjoy it as a daily driver for more than two years so I reasonably, albeit not 100% perfectly, abided by the 2000 mile max 4000 RPM specified in the manual.
It would not surprise me if one of the car's computer does not have a permanent memory for parameters that could invalidate a warranty claim. Also, interestingly, last April when I took delivery at the Atlanta PEC, they clearly told us there is no break in regimen and "your Boxster is already broken in". The absolutely contradicts the manual and, since it was verbal, means nothing.