Agreed. I don't usually rate comparos such as those very highly since I always think that the car that 'lost' could be driven faster around any particular track.
...But 7:32? Around the 'Ring? That's mighty impressive. Even more impressive if you read it like so --> Seven Minutes Thirty-Two Friggin' Seconds.
Just. Wow.
ADDED IN: To be fair though, I couldn't find any official story yet, so whether 'special' tyres or other steroids of the automotive sort were used is anyone's guess.
That's the first part, the second part:
I imagine not, but 7:55 is plenty fast in itself. The Scuderia with it's trick rubber, higher power and lighter weight will probably shave quite a lot of seconds off. It'll probably also cost a few bank-robberies more as well (not a valid argument with these cars I know).
Closing off: I love both the F430 and GT2, but in my books the GT2 wins by a smidgen.