The model numbers are sometimes to designate floor plan. For instance, the old 30 and 31 Classics were both 31' long. The different model number designations were for the floor plan. The 30 has a walk-through bath and the 31 has a side bath, but the trailers are the same length.
2013 Classic 30 Limited
2007 Silver Toyota Tundra Crew Max Limited 5.7 iForce
2006 Vivid Black Harley-Davidson Road King Classic
1999 Black Nissan Pathfinder LE
WBCCI #1811, Region 6, Unit 56