White is not a good color for any SUV IMHO...

Also the center console is more integrated, with the removal of the ash tray, but I would miss the flat part in front of the gear lever. Materials look higher standards, like the Panamera.

As far as the design (rear, front not that different), the rounded shape has feminized the car a lot and makes it look smaller at the same time. It also makes the car less unique, as many other SUV have that rounded shape, except it was years ago (touareg, murano/infinity, lexus...).

Lower weight is always welcome, but no article mentions it is mostly at the expense of the off-road abilities...

Last is going to be price. Considering you could get 10% off new Cayennes last year, that puts the new turbo higher than the outgoing TTS (at last year's prices).