New Vehicle Too High On Rear

So, I created a new vehicle model in blender. Viewing it in Show Tool displays it as it was created. I replaced the buggy model with my new model, and when it shows up in game, the body of the car is angled from very high in the back to normal level in front. Because the model seems fine, I must assume that it is some sort of script property that is causing this, but I cannot seem to find which setting that is. Anyone have any ideas?

Note that I have tried this with both the tire model from the buggy and the tire model I created, both with the same results.