I really cannot say, I have only been up close and personal with the M version. I do know that the M XMBR has "HP" painted on it.
Originally Posted by JediZ
I know the crossmembers of the M versus Z3 Coupe carry different part numbers, but how exactly are they different other than exhaust hanger mounts? I've heard they are identical other than that and was wondering if you could confirm based on your experience. Thanks.
Considering the narrower axles/trailing arms, the pickup points may be relocated. No proof though
Seems that somebody thought the M piece was a heavier gauge, but I have no way to substantiate that, it may be pure speculation...
1957 Austin-Healey 100/6 Wine Red
1961 McCulloch R1 go-kart Screaming Yellow
1995///M3 Coupe Dakar Yellow Eurosport Twinscrew S/C
1999///M Rdstr Cosmos Black Eurosport Twinscrew S/C
1999///M Coupe Estoril Blue Eurosport Twinscrew S/C
2001///M Rdstr Steel Gray
2011 X5 35i Sport Deep Sea Blue/Cinnamon