I had a drive in this model car when its launched newly of shvs engine, im not aware of that system and just gone for a drive and in traffic signal I just stopped the car n left in neutral by holding brake and the engine was closed suddenly im very scared of that situation because mid of tbe road car was strucked. And later im trying to check what happened but a.c. was running and engine was closed. Unfortunately I pressed the clutch and engine was back. I felt very happy the engine is back to work. Later again on running when I left the accelerator again engine closed but a.c. was running and when is depressed the accelerator its back to run. Immediately I googles it and learned about the feature. And relaxed. Really wwhatever is happened, final result is I got 18 km in city traffic and its awesome. I never got any car with such high mileage in the city drive.