Originally Posted by +fireamx
I guess the actual date must not be that critical when deciding when the new production year really starts.
The production change over probably would vary from year to year depending on how many they are going to build each year, production rates, etc. Build date doesn't necessarily dictate model year either. They were building '05 roadsters while they were still building the last of the '04 coupes. For example:
1C3APE9L5 4X025244...2004 Coupe # 25244
1C3AN65LX 5X025213...2005 Roadster #25213