From the emergency services document for the Model S, there is something in there that describes a softer part of the hood to give pedestrians a softer impact. Cant remember the specifics right now, but a little search may bring something up
I really like the Volt option. A button at the end of the turn signal stalk that emits a "quiet" warning horn.
I believe it's the Active Bonnet that raises the hood if Model S knows it's about to collide with a pedestrian. Apparently it helps lessen the amount of injury a person receives when the car hits a person.
I'm pretty sure that in North America you don't put things in until they are legislated due to the lawsuit happy climate. If you put it in and it's not legislated, you can be sued for bad engineering and whatnot. If it's legislated, then you're safe. Heck of a way to do things, but that's how it is.Yes, this feature is not applied to US spec cars. I don't know which countries do get it, but we definitely don't.