Did they do this on the track or with a gtech meter, iphone app?
EDIT: Here is what the article says about their testing. I'd still like to see if anyone can break into the 12s using track timing equipment.
Quote:
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We know you guys will want the quarter-mile figures first so here they are: The LS3-powered coupe with manual 6-speed gearbox did the quarter in 12.95 seconds at 112.92 mph. Naturally, we didn't have an actual drag strip at our disposal, so these numbers were obtained with a VBox GPS-based data-acquisition unit with 12 inches of rollout programmed into the software to simulate the staging zone on a real strip. (A drag strips's timing system gives a car about a one-foot head start. Without the rollout the e.t. is 13.24 seconds.) Best results were obtained with the electronic traction control shut off via the handy switch in the center of the dash. While the ice-cold and totally unprepared pavement provided precious little traction, dialing up some wheel speed with the throttle produced a satisfactory launch - and plenty of satisfying tire smoke, too. The 0-60 mph and 0-80 mph times were 4.70 and 7.15 seconds, respectively.
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http://www.hotrod.com/featuredvehicl...ive/index.html