Heads up for anyone who's ordering a 2017 40e in the US:
The US pricing guide includes standard equipment 4U9 "Acoustic protection for pedestrians" that was not in the guide for 2016. Google leads me to believe this is the same system that's in use on the i3 and can be heard here:
EDIT: Skip ahead to the 1:06 mark. The URL includes the timeskip but the forum doesn't allow that I guess.
I've got a request in with my client advisor for more details but he doesn't anything for me yet.