2025 Grand Design Momentum M-Class 395MS vs 2025 Forest River XLR Nitro 407

Detailed Comparison

Both the 2025 Grand Design Momentum M-Class 395MS and the 2025 Forest River XLR Nitro 407 have loyal followings, and for good reason. Here's an objective look at how they measure up.

Dimensionally, you're looking at 42.5 ft for the Grand Design Momentum M-Class 395MS and 29.0 ft for the Forest River XLR Nitro 407. The Forest River XLR Nitro 407 carries an extra 3,600 lbs, which affects tow vehicle requirements and fuel economy.

The Grand Design Momentum M-Class 395MS sleeps 7 while the Forest River XLR Nitro 407 accommodates 9. Slide-outs play a role in livability: the Grand Design Momentum M-Class 395MS has 0 and the Forest River XLR Nitro 407 has 1.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Forest River XLR Nitro 407 at 93 gallons versus 61 gallons. Solar-wise, you get 300W on the Grand Design Momentum M-Class 395MS and 400W on the Forest River XLR Nitro 407. Battery banks are 150 Ah and 100 Ah.

At $176,000 MSRP for the Grand Design Momentum M-Class 395MS and $173,000 for the Forest River XLR Nitro 407, the Forest River XLR Nitro 407 saves you $3,000. With only a 2% price difference, the choice comes down to features rather than cost.

If you're traveling with a family, look for the model with more sleeping positions and better storage. Boondockers: look at the fresh water capacity and solar/battery systems — they determine how long you can stay out. For the full-time RV lifestyle, every gallon of tank capacity and every inch of counter space counts.

Remember, the perfect RV is the one you'll actually use. Pick the one that excites you most and hit the road.