The 2026 Tiffin Motorhomes Allegro Bus 40 IP represents the pinnacle of diesel Class A luxury, designed for travelers who want uncompromising comfort, power, and craftsmanship. Built on Tiffin’s PowerGlide chassis and powered by a 450-horsepower Cummins diesel engine, this coach delivers a smooth, confident ride for long-distance touring and full-time living.

At approximately 41 feet long with four slide-outs, the 40 IP offers an expansive interior that rivals high-end residential living.

Step inside and you’re greeted by a wide-open living area featuring premium seating, elegant cabinetry, and large panoramic windows. The quad slide design creates a spacious environment perfect for entertaining, relaxing, or extended stays on the road.

High-end finishes and Tiffin’s renowned craftsmanship are evident throughout every detail of the coach.

The Allegro Bus 40 IP features a true residential kitchen designed for serious cooking:

Whether you're preparing quick meals or hosting guests, this kitchen delivers luxury and functionality.

The bath-and-a-half layout provides convenience for both owners and guests. The rear master suite offers a king bed, large wardrobe storage, washer/dryer prep, and a spacious private bathroom—creating a true retreat on the road.

With its 450 HP diesel engine, air ride suspension, and 10,000 lb. towing capacity, the Allegro Bus is engineered for serious travel.

Additional features like heated tile floors, hydronic heating, large tank capacities, and advanced safety systems make it ideal for full-time RV living or extended adventures.