Interesting to revisit this thread.

My car had 4 miles (6 km) on the odometer too when I collected it at the factory.

And no, they do not do a PDI at the factory since no 'shipping' is being done.

All I know is that they benchtested the engine for 36 minutes (as they do for every engine they make) before it was put into the chassis. Porsche checks to see that the engine is producing at least 355 bhp or up to 4% more (but never less than 355hp).

No warning lights so far. It's been absolutely flawless.

The electronic engine oil indicator has gone down by 1 bar after 700 miles driving. I assume this is about normal.