Towing capacity of Sprinter motorhome

I ran into many people in Alaska last year that had the MB Sprinter class C MH and a lot of them were towing toads. One of the most popular was the Honda CRV. I asked many of them how they towed the Honda and all were happy with it and had no problem pulling the hills. I was driving my Ford truck with a camper and followed a few on the MB Sprinters up the hills and they sure didn't seem to have any problem.

I know I'm going to try towing a Subaru Crosstrek with ours. I'm supposed to get it on 10/15/14 so I'm ordering all of my towing gear for it now.