I think that the picture is neither 4.6 or 4.8is. Believe that it's an accessorized 3 or 4.4 because it doesn't have the shadowline trim that comes with the limited models.

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2005 X5 4.8is/ Imola Red/ Cream
2002 ///M Roadster/ Alpine White/ Imola Red (SOLD!)
2008 ///M5 ordered and on it's way!!