2008 Trailering and Towing Guide rate the suburban GCWR at 16,000lbs.
Thats with the 4.10 rear, aux-coolers, and biggest engine option:disappoin

That doesn't come even close to hauling my travel trailer...

So, if you've got more than 5 passengers, and want to haul a big enough travel trailer- your options are:
new Ford E350
used excursion
used superburban

Sure hope they figure out how to get 400+ hp/torque out of these hybrids....:banghead: