2017 tiffin motorhomes allegro red 37 pa this allegro red class a rear diesel coach provides many of the comforts of home. you will enjoy a spacious interior with quadruple slides and many choices to make this your new dream home on wheels.step inside model 37 pa in front of the passenger seat and take a look back through the coach. you will find a wide open concept living space with dual opposing slide outs right up front. behind the passenger seat there is a booth dinette with an overhead cabinet or you might wish to select either a dinette with computer workstation or a u-shaped....