Regarding the green one pictured, it too has a cab rack. Arithmetic on Penthouse, Lift spec = 200 lbs - (100 lbs for rack + 35 lbs for PV) = 65 lbs.
Exception: When the 45 pounds larger section of the upstairs bed is removed, this adds 45 pounds to the capacity, so the lift capacity goes up to 110 pounds.
When down, the Roof rack spec is 500 lbs. of load.
Hoping my spec and arithmetic are correct, thinking this is similar or the same to 2014s and earlier?