Handling was much better than I expected. Put it this way, on some very narrow roads I was able to get the nose tucked in with ease, and that's assuming it's on a very basic geo setup: Who knows how good it could be if you tinkered with it? Much like the Zed is a bit understeery from OEM, but you can get it perfect. On a flowing track I doubt it would see which way the 911 went, but then it's never going to see a track so I'm not convinced it would matter.
It's not floaty like I expected, but neither is the suspension too harsh. It carried the weight well, and I've no doubt on slightly more open roads with a few more miles under my belt I'd feel happy using the power to get the back end to rotate.
Top wordage!
You're right, of course, there's no doubt the 911 is more desirable and tbh it does everything the M6 does, but with more panache. What it doesn't have is that engine, and as good as the DFI flat six is, it's not quite at the same peak as the V10.