ekimv65- The 4 spoke wheels does fit E53 X5. That's what I'm putting on mine. Just have to make sure you have the right airbag for it. The airbag for the 4 spoke wheel is different than the one for the 3 spoke sport wheel. Most board members prefer the thicker 3 spoke wheel. I'm sure plenty would look to do a trade with you.

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2005 X5 4.8is
2002 E39 M5- sold
1995 E36 M3- sold