A few aesthetic changes to the Model S were made for the 2016 model year.
Tesla removed most of the faux-front grille in 2016, giving the front a cleaner ook. Also, a new vegan interior option was added to the Model S P100D, according to Electrek.
The glass roof became an option for the Model S and was endorsed by Elon Musk on Twitter. The solid glass roof cost about $500 less than the $2,000 panoramic roof. The three roof treatment options then became the painted roof, solid glass roof, or active panoramic roof.
In terms of non-aesthetic changes, the second version of the Autopilot hardware became standard after October 2016, according to Tesla. The "Full Self-Driving Capability" option, which, to date, has not yet been made widely available to the public, had a $3,000 price tag at delivery, according to The Verge.