The 2026 Grand Design Momentum G-Class 320G is built for RVers who want high-end comfort AND rugged toy-hauling capability — the perfect balance of luxury living and adventure-ready functionality. Now available at Sonny’s RVs in Casper, Wyoming, this premium G-Class toy hauler offers a spacious garage, residential-quality features, and Grand Design’s superior construction designed to handle everything from Wyoming mountain trips to cross-country adventures.
The Momentum G-Class 320G is designed for those who bring their toys along. The rear garage features:
Whether you're heading to the sand dunes, mountain trails, or Wyoming backcountry, the garage bay is ready.
The interior offers an open concept living room with:
This makes the 320G comfortable for rainy days, long trips, or evenings relaxing after riding.
The kitchen includes:
Designed for cooking full meals — not just camping snacks.
The 320G offers multiple sleeping zones:
Perfect for families or groups who travel with gear AND need real sleeping space.
With Grand Design’s superior insulation and engineering, the 320G is ready for all-season Wyoming adventures:
Sonny’s RVs is Wyoming’s trusted dealership for Grand Design Momentum toy haulers, offering:
Visit Sonny’s RVs in Casper to explore the 2026 Momentum G-Class 320G in person. We proudly serve Wyoming RV shoppers from Casper, Douglas, Glenrock, Wheatland, Riverton, Gillette, Sheridan, and surrounding areas.
The 2026 Grand Design Momentum G-Class 320G brings together rugged adventure capability and true Grand Design luxury, making it one of the most versatile toy haulers on the market. Whether you’re hauling bikes into the mountains, exploring Wyoming’s open desert, or settling in for an extended stay, the 320G delivers the comfort, technology, and durability today’s traveler's demand. Visit Sonny’s RVs in Casper, Wyoming to experience the Momentum G-Class lineup in person and see why Wyoming RV shoppers trust us for premium toy haulers, exceptional service, and honest, family-owned care.
If you're ready to move forward, we make the process simple. Apply for RV financing through our dealership to get fast approvals and competitive rates tailored to your budget. Have an RV, trailer, or toy hauler you're upgrading from? You can easily value your trade-in to save even more on your new purchase.
Sonny’s RVs proudly serves Casper, Douglas, Glenrock, Riverton, Wheatland, Gillette, Sheridan, and all surrounding Wyoming communities — your next adventure starts here.
Information and features are based on manufacturer data and may vary from the actual unit. Sonny’s RVs is not responsible for errors or omissions. Prices and availability may change without notice. Buyers must verify all details, features, and conditions with a Sonny’s RVs sales representative before purchase.
| Stock # | N26-9035 |
| Location | Sonnys RVS |
| Year | 2026 |
| Make | Grand Design |
| Model | Momentum G-Class |
| Trim | 320G |
| Condition | NEW |
| Status | In Stock |
The 2026 Grand Design Momentum G-Class 320G is built for RVers who want high-end comfort AND rugged toy-hauling capability — the perfect balance of luxury living and adventure-ready functionality. Now available at Sonny’s RVs in Casper, Wyoming, this premium G-Class toy hauler offers a spacious garage, residential-quality features, and Grand Design’s superior construction designed to handle everything from Wyoming mountain trips to cross-country adventures.
The Momentum G-Class 320G is designed for those who bring their toys along. The rear garage features:
Whether you're heading to the sand dunes, mountain trails, or Wyoming backcountry, the garage bay is ready.
The interior offers an open concept living room with:
This makes the 320G comfortable for rainy days, long trips, or evenings relaxing after riding.
The kitchen includes:
Designed for cooking full meals — not just camping snacks.
The 320G offers multiple sleeping zones:
Perfect for families or groups who travel with gear AND need real sleeping space.
With Grand Design’s superior insulation and engineering, the 320G is ready for all-season Wyoming adventures:
Sonny’s RVs is Wyoming’s trusted dealership for Grand Design Momentum toy haulers, offering:
Visit Sonny’s RVs in Casper to explore the 2026 Momentum G-Class 320G in person. We proudly serve Wyoming RV shoppers from Casper, Douglas, Glenrock, Wheatland, Riverton, Gillette, Sheridan, and surrounding areas.
The 2026 Grand Design Momentum G-Class 320G brings together rugged adventure capability and true Grand Design luxury, making it one of the most versatile toy haulers on the market. Whether you’re hauling bikes into the mountains, exploring Wyoming’s open desert, or settling in for an extended stay, the 320G delivers the comfort, technology, and durability today’s traveler's demand. Visit Sonny’s RVs in Casper, Wyoming to experience the Momentum G-Class lineup in person and see why Wyoming RV shoppers trust us for premium toy haulers, exceptional service, and honest, family-owned care.
If you're ready to move forward, we make the process simple. Apply for RV financing through our dealership to get fast approvals and competitive rates tailored to your budget. Have an RV, trailer, or toy hauler you're upgrading from? You can easily value your trade-in to save even more on your new purchase.
Sonny’s RVs proudly serves Casper, Douglas, Glenrock, Riverton, Wheatland, Gillette, Sheridan, and all surrounding Wyoming communities — your next adventure starts here.
| General | |
|---|---|
| Class | Fifth Wheel |
| Secondary Category | Toy Hauler 11 Ft. Garage |
| Other Specifications | |
|---|---|
| Wheels Composition | Aluminum |
| Number Of Axles | 2 |
| Front Brake Type | Not Applicable |
| Rear Brake Type | Electric Drum |
| Width (IN/MM) | 8.42 ft. (101 in.) |
| Length (FT/IN) | 36' 3" |
| Gross Weight Rating (LB/KG) | 16,800 lbs. LBS |
| Number Of Propane Tanks | 2 |
| Total Propane Tank Capacity (GAL/LBS) | 60 lbs. |
| Body Material | Fiberglass |
| Number Of Doors | 2 |
| Number Of Slideouts | 3 |
| Awning Length (FT/M) | 18 ft. (216 in.) |
| Power Retractable Awning | Yes |
| Kitchen Location | Center |
| Living Area Location | Center |
| Number Of Oven Burners | 4 |
| Overhead Fan | Yes |
| Layout | Oven / Stove |
| Refrigerator Power Mode | Electric |
| Number Of Sofas | 1 |
| Sofa Material | Vinyl |
| Reclining Sofa | Yes |
| Max Sleeping Count | 7 |
| Number Of Bunk Beds | 1 |
| Number Of Double Beds | 0 |
| Number Of Full Size Beds | 0 |
| Number Of Queen Size Beds | 1 |
| Number Of King Size Beds | 1 |
| Number Of Convertible Sofa Beds | 1 |
| Bunkhouse | No |
| Number Of Bathrooms | 2 |
| Bathroom Flooring Type | Vinyl |
| Bathroom Location | Center |
| Toilet Type | Plastic |
| Bathroom Sink | Center |
| Bathroom Medicine Cabinet | Center |
| Bathroom Mirror | Center |
| Bathroom Vent Fan System | Center |
| Battery Power Converter | Yes |
| Air Conditioning Prewiring | Yes |
| Cable Prewiring | Yes |
| Phone Prewiring | No |
| Heat Prewiring | Yes |
| TV Antenna Prewiring | Yes |
| Satellite Prewiring | Yes |
| Washer/Dryer Prewiring | Yes |
| Air Conditioning Type | Automatic |
| Heater Type | Automatic |
| Water Heater Pump Power Mode | Electrical / Propane |
| Number Of Radios | 1 |
| Surround Sound | Yes |
| Rear Video Backup Camera | Yes |
| Wallpaper | Yes |
| Interior Wood Finish | Yes |
| Basic Warranty (MO) | 12 |
| Structure Warranty (MO/MI) | 36 |
| Spec | 0 |
| Type | Toy Hauler |
| Solar Battery Charger | Yes |
| Water Heater Tank | Yes |
| Shower | Center |
| Toilet | Center |
| Heater | 35,000 BTUs |
| Air Conditioning | 30,000 BTUs |
| Speakers | Interior / Exterior |
| Height Closed (IN) | 13.42 ft. (161 in.) |
| Dry Weight (LBS) | 12400 LBS |
| Hot Deals |
|---|
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