See the YouTube video link if you would like to know how to activate your Rivian R1Ts bed camera with the tailgate down while in reverse. I saw on another thread that this could not be done, but I found it by accident and posted this video for anyone that wants to know how to do it:
The Max Pack will most likely be canceled for the following reasons:
Cost: It will be too expensive to produce
Most consumers will not need 400 miles of range.
A 180 to 200 KWH battery is not environmentally friendly (Hummer EV)
Rivian will lose money for their shareholders for every MAX Pack...