Can anyone make sense of this... Why are the years of some of the cars and packages different? For example, I have two Dale Jr. AMP Energy cars; one has 2011 on the car and 2011 on the package, and the other has 2011 on the car and 2012 on the package. Denny Hamlin has 2010 on the car and 2011 on the package. Joey Logano has 2011 on the car and 2012 on the package. What is this all about?