2024 Grand Design Solitude 375RES vs 2024 Keystone Cougar 311RES

Detailed Comparison

Comparing the 2024 Grand Design Solitude 375RES to the 2024 Keystone Cougar 311RES reveals some interesting trade-offs that could influence your buying decision.

The Grand Design Solitude 375RES measures 31.5 ft in length at 14,700 lbs, compared to the Keystone Cougar 311RES's 34.0 ft and 11,300 lbs. GVWR ratings sit at 18,000 lbs and 15,700 lbs respectively.

Capacity-wise, expect to sleep 7 in the Grand Design Solitude 375RES versus 8 in the Keystone Cougar 311RES. With 4 and 2 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Grand Design Solitude 375RES carries 71 gal of fresh water, 40 gal gray, and 38 gal black. The Keystone Cougar 311RES offers 92 gal fresh, 48 gal gray, and 46 gal black. The Keystone Cougar 311RES has the edge for extended dry camping.

Budget-wise, the Keystone Cougar 311RES is listed at $143,000 compared to $143,000 for the Grand Design Solitude 375RES.

For family camping trips, the larger floor plan and additional berths make a real difference. For boondocking, the model with superior solar and battery setup will keep you comfortable off the grid longer. If you're going full-time, the larger tanks and more robust build quality matter enormously.

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