Is pre-brake standard?
"Presafe" is the feature that will closer your windows / sunroof, pretension your seatbelts, etc., if it thinks you're about to wreck. As far as I know, this is standard -- perhaps even on all MB's.
"Presafe Brake" is the auto-stop feature that you're referring to, and I believe it only comes with the distronic package (adaptive cruise).



