Originally Posted by Qsilver7

Ditto...just like the e39 5 series being the odd horse in the barn with it's 74.1mm wheel hub and all previous and the following e60 5 series have a 72.56mm wheel hub...BMW did the same thing with the e70 X5 and designed their wheels with a 74.1mm wheel hub.

So as stated above, e53 wheels would need their wheel hub bored out larger to fit on an e70...and e70 wheels would require hub-centric rings to reduce the larger 74.1mm wheel hub to the smaller 72.56mm wheel hub size to mount on an e53.

The other specs (wheel offset & bolt pattern) are the same.