I've noticed a bit of a quirky thing on my 17' premier Cruze. If the auto-stop shuts off the engine at a stop light, and the engine restarts prior to me removing my foot from the car, the idle is very rough almost like a misfire to it. If I shift the transmission from drive, into neutral, the vibration seems to mostly go away. Has anyone else had a similar experience? It took me a while to pinpoint when I feel a rough idle, and it seems to happen almost always after the car restarts from the auto-stop. The dealer said it's normal, so no help there. But has anyone else noticed that rough idle after the restart?