LMAO!!! street driving ........You go git 'r done there Mad Max........the wife's 530xi can out corner that GT with ease. Problem is too much power to your rear wheels causes wheel spin and loss of control. Thank Newton for that. Not Mustang bashing at all. Just for the money seems to be many other cars out there that perform better. Texas roads warrants many opportunities to "push cars to the limits"........M-5 is next and then your GT is really out of its league. 
buddy of mine had an m5.........18 year old girl running a light broadsided him. thankfully, he had hesitated before going, so he lived.....unfortunately, the car didn't. it was beautiful.
i wasn't trying to put down the car. i'm no mad max either. i just tend to know how far i can push my cars, and when someone tries to plant themselves on my back bumper, they generally don't manage to stay there long.

i did lose to a 5 series beemer once. in my dakota. that thing drives like an old 80's 5th ave. at anything over 70.
dammit.....now i'm gonna hafta price radar detectors again......mustangs aren't stealth.......