Notes
1. “too much sound!” and “Road noise” www.mytesla.com (December 2013 and March 2014); “is model S quieter than Lexus” www.teslamotorsclub.com (November 2012).
2. “Possible future software update: Simulated engine sound” and “Fake engine noise in ICE vehicles” MyTesla.com (July 2013 and January 2015).