I currently have a 2012 Tundra with the 4.6L engine, 4x4 double cab. Looking at buying a new truck and am intrigued by the Colorado/Canyon diesel. I tow a 31 foot ultra-light travel trailer 140 miles in the Spring, and again in the Fall, to our lake site. The trailer is 5,200 pounds dry, We don't carry any water with us as it is on site. Current truck has 301 HP and 329 ft/lb torque, it does an adequate job towing. Colorado diesel has 180 HP and 369 ft/lb torque but is about 700 pounds lighter. I am searching for anyone who has towed something of this size, the weight would not appear to be an issue, I am just wondering how the truck will handle pulling a billboard down the interstate, and how it will handle the side-winds and jostling since it is a smaller footprint truck. I would be interested in the crew cab long bed which would give the most stability for this truck. Any insights would be appreciated..