Bob is correct. There were ’13s that were being built, already ordered that color. When they took too long, production on the remaining cars became 2014 models. Wasn’t officially an option in 14.
Nine Ball is absolutely correct. They were supposed to be run , but with the Plant shutting down every July for 2 weeks and the other delays , they could not include some of the last Strykers in the 13 Production run – hence a few became 14s and I believe many of those were destined for Canada.