Sierra Campfire travel trailerCustom horse trailer convertor Sierra Motor Corp., Bristol, Ind., has introduced a 15-foot floorplan in the entry-level Campfire retro-look travel trailer. The wood-and-aluminum Campfire, with three floorplans in 10- to 15-foot lengths is built with “boomerang” features with retro-style tail lights, exterior colors and interiors. ”It goes back to the designs of the mid-’60s or early ’70s,” said President Michael Greene, whose company also builds the retro Scotty Sero travel trailer. Equipped with toilets, LP and water tanks, the 15-foot Campfire retails for $14,000.