2025 Grand Design Solitude 345GK vs 2024 Grand Design Momentum G-Class 25G

Detailed Comparison

Head to head, the 2025 Grand Design Solitude 345GK and the 2024 Grand Design Momentum G-Class 25G each bring unique strengths to the table. Which one deserves a spot in your driveway?

Dimensionally, you're looking at 37.0 ft for the Grand Design Solitude 345GK and 30.0 ft for the Grand Design Momentum G-Class 25G. They're remarkably close in weight, both hovering around 10,050 lbs.

For sleeping arrangements, the Grand Design Solitude 345GK offers room for 4 and the Grand Design Momentum G-Class 25G can handle 6. The Grand Design Solitude 345GK benefits from 1 slide-out(s), expanding the interior when parked.

Looking at self-sufficiency, the Grand Design Solitude 345GK packs 56 gal of fresh water and 200W of solar. The Grand Design Momentum G-Class 25G counters with 95 gal fresh water and 250W solar.

Price is often the deciding factor. The Grand Design Momentum G-Class 25G starts at $41,000 MSRP, while the Grand Design Solitude 345GK commands $162,000 — a $121,000 gap. That's a significant 295% premium you'll need to justify.

Families with kids will appreciate the extra sleeping capacity and living space. Off-grid campers should pay close attention to solar wattage, battery capacity, and tank sizes. Full-timers should prioritize tank capacity, storage, and overall living comfort.

Whichever you choose, you'll be getting a capable rig. Just make sure to inspect one in person before signing.