When the Pacifica first came out, I looked at them at the local dealer, and all the models seem to have an air dam under the car that severely limited ground clearance. We get a lot of snow here in northern Michigan, and I figured that thing would not last one winter so I ruled out the Pacifica as a potential replacement for my 2008 Dodge Grand Caravan. Then this Sunday when I went to the Detroit auto show none of the Pacificas on the floor had the air dam. When did they make that change?