In the German "Handbuch fur Verkäufer" ( salesperson manual) it says that the salesperson should warn the customer for the chance of severe polluting...
The VIN sticker is an official BMW part (71 212 122 583). I have heard that BMWNA is not that cooperative (anymore) but in Europe you can still order...
Most likely not "home made" as the book would be quite difficult (if not impossible) to duplicate from scratch. Just not the same book that came with...
You are right! The differences you mention can happen when the book is not issued to the car. A lot of first owners sold the car without the book and...