I would order it, I also think that dealers will tell you things about thier cars just to make you buy. I also dicovered since many years ago through experience and from dealing with several dealers that the knowledge of their sales men are very little, and they will not answer many technical and even general information questiones of some models from the same brand that they are selling (Models that they are not selling).
I just bought a 2010 JK Wrangler Isalnder 2 door, and it has been a while since I bought a car from a dealer directly, normaly I order it from the dealer just to make sure that it will come with the options I wanted. When I went to purchase it I asked several questiones that no body in the show room answered even their Manager, they promised me to answer the questiones tommorow. and becuase the Islander is a Limited Edition and their will not be time to order it (I got it back in June), so I bought it based on an Optiones Report they gave me.
So I would preffer ordering than buying a displayed car.