Can you look at the title to see how it is registered? Ours is a 2013 which is reflected on the title but does not show up in the NADA Guide. After the 2013 model year was begun the now defunct company discontinued our model so the few that were built do not show up on the model list for that year. Not a big deal now as it is not for sale but could be a problem when that time comes. Since the company is gone I can't get any backup. The only thing I know to do is try to use another model number in the same length. We'll see.