Line photo: Dynamax publishes one photo for the Grand Sport line, so it may show another floorplan. Windows and slides can differ from the 45CB described here.

Dynamax · Class C · 2027

Dynamax Grand Sport 45CB

Semi-truck hardware is the whole story: a Freightliner Cascadia 126 with a 600 hp Detroit DD16 and a hitch rated to pull 32,000 lbs, making the Grand Sport a Super C for hauling large trailers. It is the line's only floorplan, with four slides, heated porcelain tile, a cab-over bunk and 800 W of solar, priced around $663,000.

Approx. price: ~$663,418; maker starting price
Length: 44.92 ft
Sleeps: —

Specifications

Size

Exterior length: 44.92 ft
Exterior height: 13 ft
Slide-outs: 4

Tanks and power

Fresh water: 150 gal
Gray water: 75 gal
Black water: 75 gal
Factory solar: 800 W
House battery: 3x low-temp lithium house batteries, 486Ah total
Generator: Onan 10kW diesel with auto transfer switch and auto gen start

Chassis

Chassis: Freightliner Cascadia 126 tandem twin-screw (58,000 GVWR / 80,000 GCWR)
Engine: Detroit DD16 15.6L diesel, 600 hp / 1,850 lb-ft
Fuel: Diesel

Standard equipment named by the maker

Semi-truck Cascadia 126 tandem-axle chassis
Hitch rated 32,000 lb (ball) / 40,000 lb (pintle), 6,000 lb tongue
Four 200W glass solar panels with MPPT controllers
2,800W hybrid pure-sine inverter/charger
Heated porcelain tile throughout
Cab-over bunk with privacy partition
Dishwasher and macerator (gallery-listed equipment)

Weights

2027 maker figures

GVWR: 58,000 lb
Dry weight (UVW): not published
Occupant + cargo (OCCC): not published
Towing capacity: 32,000 lb

What these weights mean →

Size, to scale

051015202530354045 ft

Dynamax Grand Sport 45CB · 44.92 ft long · 13′ tall

Drawn to one scale from each camper's listed length and, where the maker publishes it, its exterior height. Outlines are typical for the camper type, not traced from this model. The figure is a 6 ft person. The dashed blue line is 25 ft, the length about 93% of national park campgrounds accept.