Here is what I was referring to (left side: Baku; right side: China):
Also new on the frontwing: Three trays. Probably used to play around with weight distribution. Maybe they have been able to slim down the car a bit and now can play around with some removable weights.
/edit
Others also spotted it now.
https://twitter.com/AlbertFabrega/statu ... 31105?s=09