Not having that problem but I've noted that if I start the car and immediately give it gas ... nothing happens! I have to sit still for about 5 seconds before it will go anywhere. I've never had that happen in any other car but I've never had a car with so much electric assist on everything.
2011 Shelby Convertible w/SVT Performance & Electronics Packages
2011 Shelby GTS V6 Convertible, AT, CAI, Aluminum DS, 3.73, Tune