2017 Tiffin Motorhomes ALLEGRO 31MA Class A Gas RV. Tiffin&#x27;s flagship motorhome has been setting the pace of the RV industry for four decades. Climb aboard and raise your expectation for quality, design, and luxury. Backed by Tiffin&#x27;s legendary warranty and support, the Allegro is affordable, comfortable, and as customizable as your itinerary.