Owner of 3 Model S's going back to early 2013:
1. Waze integration
2. Spotify, Tidal and Deezer integration in dash @ high bitrate - see thread here -
Elon confirms Spotify is coming to US
3. Noise cancelling for wind noise reduction and more insulation
4. More range - (I like to drive 80+, speed kills range) I would pay for 600 miles of range.
5. propane tank option for those that live in the far north and need rapid cabin heating. (more range alternative strategy)
6. mono block forged wheels 19 or 20 on the sport/flagship performance model (21's are over the top in this weight class)
7. Towing option - 5000 lbs minimum
8. Moon Roof (bigger is better)
9. Better front lighting (Laser headlights preferred)
10. Carbon Fiber accents verses that crappy chrome trim that shows fingerprints. (doors handles and trim)
11. Alexa or whatever voice integration
12. Audiophile sound system option
13. Air-conditioned seats
14. Huber Optic Tint standard (or like product) or photo reactive tint.
15. Weight loss program
16. Make FSD or whatever its called this month - standard on the premium/flagship product.
17. Leather (cow, kangaroo, buffalo, goat, whatever - they are getting slaughtered for food, may as well use the byproducts)
18. Safety features:
a. Android Auto and Apple CarPlay - so I don't have F with my phone while trying to drive - should be law about that

b. USB Type C 3 AMP plugs - lots of them...
c. Head-up display - so I don't have to look down while driving
d. Wifi Hotspot - 5G when it is released
e. Wireless charging pad
f. rear hatch open with foot sweep (when my hands are full)
g. Adjustable seatbelt anchors for my petite wife who gets chopped in the neck by the shoulder belt
h. 110 volt power outlet
i. whole house power tether for emergency energy.
j. 360 camera
k. Laser headlights once DOT wakes the F up -
Bloomberg - Are you a robot?
l. Better cabin lighting and trunk/frunk lighting - I'm getting old and these eyes need more lumens to see..
19. Track Mode for sport model S's
20. Faster than Model 3 Supercharging
21. Free Supercharging on Flagship products
22. Bepoke Service for your premium return customers
a. Car of their choice or Uber Black until service returned
b. Move to front of service line on first call with special phone #
c. priority mobile service
d. priority roadside assistance service
23. Acceleration - just make it so I continue to see everyone in my rear view mirror. - you are doing superior here...