Depends on driver of both cars. I drove a friends on the way to Famoso. His had a tune,sc pulley,exhaust, and CAI. He told me to jump on it good. Which I gladly did. Just with those mods that car is easily a low 11 sec car. With slicks and the proper rear end stiffened maybe 10's. It was way, way faster than my car and I ran 11.89 that weekend. He took his E55 to the track not the GT500. Otherwise I would have put that thing down the track.

Stock for Stock dead even with equal drivers. Both with drag radials the GT500 wins.

Both highly modded not even close. The GT500 will eat the 6 for lunch.

Most owners have no clue how to drive a torque monster. Find one that does and watch out.