Not to start a "war" but, where do you feel the need for V8 power...and have you driven a 3.0?
I have owned about 10 straight 6 Bimmers over the years starting with Bavaria's in the 70's and have driven 4.8 X's and to me (my opinion) there is more power in the V8 but it is totally unnecessary for the vehicle....as I said, unless you are towing a HEAVY load...and how many X5's do that?

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