Dynamax Grand Sport: The Ultimate Full-Size Luxury Super C

The Dynamax Grand Sport sits at the apex of the Super C motorhome market — a 45-foot, tag-axle diesel coach that combines commercial-grade construction with residential luxury. For buyers who want the ultimate Super C experience, the Grand Sport delivers capabilities that most Class A diesel pushers can't match.

Why 45 Feet of Super C?

Traditional wisdom says if you want a 45-foot coach, buy a Class A diesel pusher. The Grand Sport challenges that assumption. By building a 45-foot coach on a Freightliner chassis with a Cummins diesel, Dynamax delivers the towing capacity, structural integrity, and elevated driving position of a Super C in a package that rivals the interior space of a high-end Class A.

The 45CB Floor Plan

The Grand Sport 45CB features four full-wall slides that transform the coach into a genuine living space. The main salon accommodates theater seating, a full-size dinette, and an L-shaped kitchen with residential appliances. The mid-coach bathroom separates the master suite from the living area for privacy. The rear bedroom features a king bed with wardrobes and a second bathroom entrance.

Drivetrain & Performance

The Cummins B6.7 turbo diesel paired with an Allison 3000-series automatic delivers effortless power. The tag axle distributes weight for exceptional highway stability, and the air-ride suspension delivers a remarkably smooth ride for a 45-foot vehicle. Towing capacity exceeds 20,000 lbs — enough for virtually any towed vehicle or trailer.

Grand Sport for Las Vegas Buyers

The Grand Sport is ideal for Las Vegas-based owners who want maximum interior space for full-timing or extended travel. The tag axle's stability shines on I-15 to Southern California and I-40 east to Flagstaff. Visit 24/7 Motorcoach to experience the Grand Sport in person — it's a coach that must be seen to be appreciated.