Just upgraded my 2017 Model X.
Went from 75 battery to the latest version 6 100 kWh.
Added the new adaptable suspension.
Added 3 years full vehicle warranty
Upgraded to the latest V3 computer.
Got a new, no yellow line, display.
Got rid of 30,000 mile Contential tires for brand new fresh ones.
Upgraded from standard interior to luxury interior.
Got the latest charging electronics.
Battery charging is much faster, and compatible with the new V3 Superchargers.
All at the same price i paid for my first X, 33 months ago.
Bonus, will get all new Rebates and Tax credits.
Seriously. The new 100 Raven cost me almost exactly what I paid for my first 75X in January 2017.
Still got Free Supercharging for Life (but not transferable).
Accountant said that with using a fresh Section 179 business tax deduction, it was a no-brainer decision to get a entire new car.
Like the 100 miles increase in range, but the most amazing improvement is with the new adaptive suspension. The smoothness and better cornering control is a much bigger improvement than I had expected.
Only downgrade is going from EAP to standard Autopilot. Something I can live with until I spring for FSD.