2024 Grand Design Solitude S-Class 3460FL vs 2025 Keystone Avalanche 312RS

Detailed Comparison

The 2024 Grand Design Solitude S-Class 3460FL and 2025 Keystone Avalanche 312RS might look similar on paper, but dig into the details and you'll find meaningful differences.

The Grand Design Solitude S-Class 3460FL measures 37.5 ft in length at 11,700 lbs, compared to the Keystone Avalanche 312RS's 38.0 ft and 8,300 lbs. GVWR ratings sit at 14,800 lbs and 13,000 lbs respectively.

For sleeping arrangements, the Grand Design Solitude S-Class 3460FL offers room for 8 and the Keystone Avalanche 312RS can handle 6. The Grand Design Solitude S-Class 3460FL benefits from 3 slide-out(s), expanding the interior when parked.

Looking at self-sufficiency, the Grand Design Solitude S-Class 3460FL packs 93 gal of fresh water and 350W of solar. The Keystone Avalanche 312RS counters with 74 gal fresh water and 100W solar.

Price is often the deciding factor. The Keystone Avalanche 312RS starts at $135,000 MSRP, while the Grand Design Solitude S-Class 3460FL commands $136,000 — a $1,000 gap.

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.

No comparison can replace walking through each unit yourself. Visit a dealer and experience the layouts firsthand.