Was wondering if they were the same with just different sheet metal and interiors.

Thanks

 

Yep. The Nav does have another power option, the 32v Intech which is a 32 valve 5.4 with 300 HP and 355# of torque vs. the Expy (and base Nav power) 5.4 with 260 HP and 350# of torque.

There are differences but you'd have to drive each to see what you want in a SUV.