i'm no wheel guru, but others have explained to me that it comes down to how they're made...Low-pressure cast, forged, etc. Some OEM wheels are made by BBS (like the forged 19" style 313s I'll be putting on my car in the spring) and others are not. I not onloy like the look of those wheels but like that they are made by a quality mfr using the process that ensures light weight but high strength as well for roads here in the northeast. VMRs are quite popular on this platform and seem to be a good compromise between quality and price. 269s are awesome, btw.
Cobb E40 PROtune by Jake@PTF/RR catless DPs/aFe DCI/ETS 5" FMIC/Alpina B3 TCU flash/BMW Perf. Exhaust./BMW Performance Style 313s/M-Tech Rear