Taken from the article:
"…that takes down the CLS63’s quarter-mile performance of 12.8 seconds at 111.8 mph, while the mighty V10-powered M5 goes down, too, with its run at 12.7 seconds at 113 mph. The M3? Nope — not as quick. The Audi RS4? Nuh-uh. The Lexus IS-F? Please. What about the C63 — that little bugger with the big lump? Well, now, this one’s close, and makes a pass in 12.5 seconds at 113.7 mph. That’s close — real close. But the CTS-V is still a hair quicker.
And for all this, Cadillac claims it can make the car do 60 mph in 3.9 seconds and then clock the quarter-mile in 12.0 seconds at 118 mph. "
:dunno: I have no clue if anyone other than GM has seen the thing lay down 12 flat timeslips yet?