As I mentioned in my previous post I'm ordering a GW Series I through my local Dealership. When creating the order we noticed (along with an increase in Base and Package prices) a 2K Engine upcharge. Since the GW already gets the 6.4L engine, we were confused about the 2K upcharge. The Sales Mgr made a call and discovered that a Supercharged 6 cylinder was now coming. Has anyone else heard this or can add more context - Gas Mileage, HP, Torque, etc??? Thx