Well, since no one's answered about the 1/4 mile times, I'll chime in on that.
I can get 15.6 @ 89.9 with my 525, but thats with a stick, EAT chip, and a good bit of weight reduction in the trunk area. Never tested a 535 or even seen one at the track, so I can't say for sure. I'd really like to drag against a 535 and find out!
My 0-60 is about 7.7