[bayindirh]

I have used two cars with start/stop: Renault Megane and VW Polo. Both were diesels and had automatic transmission.

Both of them started the engine just before my foot leave the brake pedal. I think they sensed the rate I eased them and decided that I'm going to roll.

I also drive an automatic Focus as my daily driver which doesn't have start/stop and didn't have a noticeable difference in their driving experience during stops, TBH.

Maybe some cars have different implementations and algorithms. A brand had on demand stop IIRC. You pressed brake a little harder to command the car to stop the engine.