that looks pretty good but probably only because the running boards and fender flares are silver as well. Looking at mine, I think the biggest detractor would be the black fender flares turning down into white Hartge side sills (black to gold for you)... probably wouldn't work, but that's just in my head.

Only way to tell - photoshop.

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'08 X5 3.0si - Alpine White / Saddle Brown interior
Specs: Sport Pkg, Premium Pkg, Tech Pkg, Comfort Access, Aero Kit, Style 433 staggered 20s on Conti DWS
Mods: Carbon 35 tint, LED angel eyes, GP Thunder 7500k fogs, H&R 20mm/25mm spacers, clear reflectors, gunsmoke-tinted taillights
Coded: Digital speedo, windows/sunroof/tailgate close via keyfob

X5 pics at Flickr