It would need to be done each time you start the car.

Not sure on re-enabling ESP on the same "drive". I suspect it will turn back on with a push of the button but I'll try tonight and report back.

Edit: once disabled in this manner, you have to turn the car off to reactivate the ESP

I'd guess that this will also work for the automatics since the Chargers were all automatics.

 

I tried this today in my auto car. It worked just like described. We finally had a nice 40 degree sunny day here so I took my buddy for a ride. He drives a low 10 sec car also, so I was thinking he may not be too impressed. However he was very surprised at the power the car has. It looks as if this will be the last day for awhile....more snow is on the way.