Yupp there was indeed a mangled black r33 on the freeway thisarvo - didn't see the actual accident so no idea of how it happened, but got a decent view of the aftermath from work (in QV1).
From what I could see it looked like the front wheel (and perhaps part of the axel) had been ripped off completely, the front was completely destroyed.
It looked like a single car accident but can't say for sure because I couldn't see the point of impact from where I was.