I think the "Peace of Mind" is directed at reservation holders. You don't have to worry about your vehicle being built anymore, because you just emptied your bank account for this one.I like how they consider the market adjustment as a Dealer Installed Option.
And WTF is Peace of Mind? I assume it's so you pay them all this extra money so no other dealership can screw you since you're getting screwed by them. At least they're up front about it.