Replacement hood paint armor (I did not like the very visible line across the hood from the Tesla armor so I paid to have it removed and replaced--Tesla service didn't even realize there was armor there after the work was done!): Mobileye collision warning system (also gives automatic high/low beam control and speed limit warning), as well as an installed Escort radar detector: I also added UV window film to all windows to ensure all UVA is blocked. I put 90% transparent on the windshield and piano roof, 70% on the front side windows, and 40% on the rear side and hatchback windows. I'm super happy with it all. The Mobileye is even better than expected. I think it may have already saved me a fender bender. All work was done by Al & Ed's in West Hollywood, which has a lot of experience with Roadsters. Apparently the S has a 25amp accessory connection BTW.