This is the same E63 AMG S that BenzBoost posted earlier in the week. At PBIR (Palm Beach International Raceway) the E63 managed an 11.8 @ 119.5. Because the E63 has under 1000 miles on the clock launch control was not used. To make it fair the GTR did not use launch control either.
The E63 has the better launch and reaction time. It also pulls the GTR on the top end running an 11.75 @ 121.52 doing much better than its previous run. The GTR is stock and does an 11.8 @ 117.54. So yes, a stock E63 AMG S can beat a stock GTR on the drag strip. Just not one of the newer GTR models.