Thanks for the advice Bob. 186 in a 1/2 mile is cooking no matter what kind of car it is. That is a monster. 158 in a GT 500 is every fast as well. I have never run that way from a rolling start in the Shelby but in the BMW plenty of times to surprise the ricer's. My wife did that in her little Audi SQ5 a month ago. for only a 3liter 6cyl with a supercharger it gets up and scoots in dynamic mode with 0-60 in a shade under 5 seconds
. Not bad for a "Soccer Mom vehicle"