Good luck with that. Car companies are basing fuel economy test results (that have more than a typical amount of time stopped) with ISG on and none will allow it to be turned off else they won't get their economy ratings.
I also didn't realize that stopping the car with the brake pedal was such a tricky task for existing drivers. I had no idea lessons would be required just to drive the car at 0 mph. Lessons will be needed for high speeds with the Stinger, though...more than enough torque to get into trouble with