The GCWR and GVWR are correct for ANY model/brand built on the Sprinter chassis. Different manufacturers will have differing tow capacities. Our Coachmen Prism has a 5000# hitch, BUT due to the frame extension it is mounted on they drop the tow capacity to 3500#. That said, as noted below we drsg around about 3200#'s of Suby Forester - it handles that just fine. Mileage-wise I get about 15+ mpg with the toad, and almost 16.5 without it, so really not too much of a "drag" on the system. But you do need to watch manufacturers weight ratings...
Two and a hound in a 2015 Coachmen Prism "B+"...pushed by '09 Suby Forester
First 50 done, working on the second pass! Nunavut - we'll see...!
2005-2015 Roadtrek 190P
1993-2005 Northstar Soft-Side TC
1989-1993 Backpacks & Tents!
1967-1977 Family TT's