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I know it's a question that gets asked a lot, so I figured I would post my experience up. I have a stock s55 AMG that went 12.99 at 108 at the track on drag radials in 98 degree weather. It got cool enough to where we figured it would make good power on the dyno, so last night decided to give it a go. I was definitely pleased with the numbers it cranked out 397 HP and 413 TQ dynoing in 3rd gear. Corrected was actually lower, it made 379 and 400. Looks like the internet projection of 370 was pretty close to the truth! Torque was crazy, 400lb-ft by 3700rpm! Power peak was sooner than I thought at 5500, but was still 350 by 6500. Anyways, if anyone was curious, that's what mine did!
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
