@Apex: thanks for compiling that, I had read both C&D stories, but not put the numbers together.
I would say that after looking at things, the two big winners are the normal C6 and the GT500 - The 'Vette handily beating the 911 Turbo is just cool, and the GT500, which otherwise seems like a terrible car, getting more use out of it's 500hp than the M6 should be embarrassing to BMW. (The GT500 would be even better if they got some more cars to fill in that huge gap between it and the Elise - 3.3seconds...maybe a Carrera S or that new CLK63AMG Black Series could fill in there).
I would say the most disappointing is either the 911 Turbo, which is way slower and less fun than the GT3 (does anyone even think a GT2 with Turbo power and GT3 suspension/tires/brakes will even be faster? Maybe because of the tires, but that GT3 engine seems like a gem), and the Z4M. The Z4M is lighter and more powerful than the 335i, plus is supposed to be a sports car rather than a GT, and yet it's more than a second slower.
There are a couple of other cars that were reviewed this year I would have liked to see tested - the Ferrari 599 would be one, and a Ariel Atom with the 300hp engine would be another (I wonder if it would be tops here, since the track seems to reward power).
Finally, I think there should be a qualifier on the GT3's times, since overall I prefer the tires provided on the vehicle to be used to simulate real-world performance, but of all the cars I know sold today, the GT3 comes with the most track-biased tires, and the only ones that probably wouldn't work on a daily-driver at all.