If you've been itching to tear you Prius apart now you don't have to. 4th-Generation Toyota Prius Teardown: Photo gallery (132 parts) - MarkLines Automotive Industry Portal
For those who are wondering about whether the Gen 4 has auto-levelling headlights, here's the height sensor. https://www.marklines.com/ja/report/statics/a/rep1489_070_l.jpg
I noticed that the MarkLines reports on the fourth-generation Prius, including the photo gallery @goldfinger kindly linked above (also posted by @Fester in 2018), are now available without a subscription: All-new Prius suppliers showcase latest technologies (2015-11-27) How improved is the new Prius? Milestone to "40km/L" (2015-11-26) Part 1: Powertrain units miniaturized and lightened to achieve 40km/liter fuel economy Part 2: New TNGA platform enhances dynamic performance; advanced aerodynamics and chassis technologies Part 3: Body structure based on TNGA, sound insulating, absorbing and damping technologies Photo gallery (132 parts) These other reports may also be of interest: JSAE Exposition 2016 (Part 1): [...] Cutaway models of the Toyota Prius [...] Exhaust Systems (Japanese Market) (2016-08-26) Car Navigation System (Japanese, U.S. and European Markets) (2016-08-01) Lighting (Japanese Market) (2016-07-26) Seat (Japanese Market) (2016-07-08) Brake (Japanese Market) (2016-04-22) Airbag (Japanese Market) (2016-04-19) Power Steering (Japanese Market) (2016-04-15) Instrument Panel (Japanese Market) (2016-04-14) Air Conditioning System (Japanese Market) (2016-04-06) You can see a complete list of reports on the MarkLines website; many of the older ones are free to view. They also have previews of more in-depth reports, such as LTEC’s analysis of the Prius PHV charger.