The following add-ons were included from the factory-- options included are a roof top A/C unit, furnace, three speed roof fan, 4.6 CF electric-gas-battery refrigerator, electric brakes, side cabinets, interior 12 V receptacles, and a full wet bath and toilet in the front.

Other than that the trailer is stock from the factory where I bought new 6 or so years ago. I have pulled this trailer with a Subaru Outback and a Toyota Tacoma. Both have pulled easy through the mountains of Colorado.