I know Tesla didn't do model years, and instead did revisions (1.5, 2.0, and 2.5). However, bluebooks, auto-sale websites, etc, all work off of model year. So it would be helpful to know what I can list my car as. My car is a 2.5 with a construction date in December of 2010. I believe the build number is 1159. One of the auto-sale websites (I believe AutoTrader) did a VIN check and listed it as a 2010. I also have a couple Tesla service records from way back that list it as a 2010. However, the majority of my Tesla service records are showing it as a 2011, so it seems like the consensus from Tesla is "2011". And given than 2.5s were started in late 2010 just like most manufacturer's 2011 models, that lends support that it's a 2011. Are there any particular legal rules or industry standards that determine what a car can be listed as? How should I describe my car when I need to use a year instead of a model number? I don't want to mislead or get into trouble, but I also don't want to short-change myself in terms of valuation.