there was a thread on something similar to this on the porsche forums dealing with some HRE's with an after market paint job. The HRE's like these, were 3 piece and painted by a third party company. The guys at HRE explained it pretty well in the thread on how just slightly over heating a forged wheel can compromise the structural integrity much much more than a regular wheel. I wish I still had the link.
Anyways, HRE inspected his wheels and sold him a brand new set of wheels of his choice for an amazing discount.
The HRE's had small stress cracks and not a catastrophic failure like these which could be due to many reasons.
MY Build Log
08 AW 135i | Cobb | ETS FMIC | ER CP w/ Tial Bov | AR Catted Downpipes | Berk Mids | Meisterschaft GT SUS 1M |M3 Control Arms | M3 Sways | M3 Rear Subframe Bushings | Wavetrac LSD | AST 4200 DA Coilovers | HRE R43 | Hankook R-S3 |Full BMW Performance Interior | Revozport 1M Raze Aero Package in Satin Carbon |1M Body Conversion|