Originally Posted by SenorFunkyPants
German factories usually close, or at the very least greatly reduce production for the first two weeks in August to allow for retooling for the next model year production with most shop floor workers taking a (forced) holiday . The 2011 Model year production for European cars started in late August 2010. Minor spec changes don't get a split model year.
I guess it make some sense to note different spec changes but anything built before August 2010 is a 2010 model year.
Not for North American delivered cars. They were officially titled as 2011 models from either Mar2010 or May2010 production onward. There are plenty of pre-09/2010 2011 model M3s out there. If you look at the production stats, you'll also see that the official 2010 model year has the fewest number of cars (due to its shortened ending).
EDIT: continuing on -- which is the reason there were 2170 E90 M3 2011 cars sold in NA versus 453 2010 E90 M3s.
2011.5 M3 sedan 6MT, Silverstone, no sunroof, no EDC, but most other options
2001 M5 LeMans Blue/Silverstone
2006 330i 6MT Red/black, ZSP, Nav, etc
2007 328i wagon Silver/gray