Had to chime in on this from my 17' Casita Fibwerglass Trailer in Brown County Park in Nashiville Indiana.
Got here with my '01 Tundra V-8 4wd Standard Cab Longbed pickup.
This is my 2nd 1st Gen. Tundra and I love them.
I tow this combination all over the place and et around 13 mpg towing and maybe 15 mpg not towing. This one has around 93K on it and they go forever without incident.
I drive between STL and South Florida several times a year and out to Colorado a few times and to Boston a few times,I drive a lot!
I also have an '05 Sprinter Van,it is a 118" Window model with the Mercedes 2.5Liter Turbo-D and it weighs around 6500 lbs,is huge and I get around 25 mpg around town!
It will also tow the Casita but I have only done so Local to date. It has around 150K on it and they are known to reach 500K before needing and overhaul.
Amazing vehicle great mileage and can get 6 50" plasma tv's in her while getting 25 mpg and mine is the baby Sprinter model.
I also have a 94 Land Cruiser and an 00 Odyssey.
I have a thing for wheeled vehicles too.
Right now there are 3 Fiberglass Rv's in the Driveway.
Who is surprised?