The Tiffin Allegro Bay 38BB pairs a bunk-over-cab layout with some genuinely heavy-duty underpinnings: a Freightliner S2RV chassis, Cummins B6.7 diesel making 360 horsepower and 800 lb-ft of torque, and a full air brake system, all channeled through an Allison 9-speed automatic. Inside, Tiffin's Spyder multiplex system handles coach controls through multiple color touchscreens, and the electrical package is built for serious travelers, with a 3,000-watt pure sine wave inverter, 8.0kW Onan diesel generator, and two 15,000-BTU heat pump air conditioners. VALTO all-composite sidewalls and a one-piece gel-coat roof cap reflect Tiffin's premium construction approach, and options like lithium house batteries, solar panels, and a stacked washer/dryer let owners configure the Allegro Bay 38BB well beyond a base build. Owners consistently praise the road manners and floor plan livability, and the Freightliner chassis is a genuine strength for long-haul travel.
Class c motorhomes that share features with the Allegro Bay 38 BB, like bunk over cab.
