Couple things I would add. Wish there was a wireless charging pad on the arm rest, like the GM's. So much more functional. Hate that every bump in the road causes it to fail.
Also, noticed your item on the lack of paddle shifters, there a good thread on here and I added to it about putting in the raptor wheel with shifters. Pretty low cost upgrade that I love (except for the red leather insert). Super simple upgrade too!
I would also add quality to the list. That goes all over the place, but stupid things like taillight assemblies that leak/fog/crack so easy, sunroof that pops/sticks no matter, within 1 week of getting the TSB service done it, etc.
Deadman posted on his upgrades to his seats in the last day or so, I wish the seats were more sporty/comfy. The Denali seats are much better IMHO and I often compare the Denali to the Plati.
Put better sway bars in from the factory, I enjoy helping the aftermarket guys, but sheesh, not an expensive or difficult upgrade.
Start putting the engine covers back on the cars...
Make the cluster screens more customizable, with the real-estate there, you should easily be able to add 2 or 3 widgets if you will, i.e. boost, mpg, audio, etc.
Better sound deadening. There's a lot of road noise etc throughout, for something this size and cost, a good layer of sound deadening material would go along way, especially with the aluminum skin, aluminum transmits a lot of vibration.
