The PDF shows Nav is optional in every model of the car, which is not the case for the '08 U.S. 4.8i according to member reports here in the last few days. Also the numbers are in km and litres, not ideal for U.S.
The SD model being included does point it in the direction of being the UK brochure. The new comfort seat images show it's an '08 model.
One question I do have though, for the 3.0d, it states "Turbo charger with variable turbine geometry" is standard. Is this considered a "turbo" then? The 3.0sd has "variable twin turbo" instead.