2024 Winnebago Solis 59P vs 2025 Thor Scope 18M

Detailed Comparison

If you're weighing the 2024 Winnebago Solis 59P against the 2025 Thor Scope 18M, you're looking at two solid contenders. Here's how they stack up.

Dimensionally, you're looking at 17.5 ft for the Winnebago Solis 59P and 17.5 ft for the Thor Scope 18M. They're remarkably close in weight, both hovering around 8,750 lbs.

The Winnebago Solis 59P sleeps 3 while the Thor Scope 18M accommodates 4.

For boondocking enthusiasts, tank sizes matter. Fresh water capacity goes to the Winnebago Solis 59P at 26 gallons versus 24 gallons. Solar-wise, you get 250W on the Winnebago Solis 59P and 250W on the Thor Scope 18M. Battery banks are 450 Ah and 400 Ah.

At $120,000 MSRP for the Winnebago Solis 59P and $123,000 for the Thor Scope 18M, the Winnebago Solis 59P saves you $3,000. With only a 3% price difference, the choice comes down to features rather than cost.

Boondockers: look at the fresh water capacity and solar/battery systems — they determine how long you can stay out. If you're a weekend camper, don't over-buy — the smaller, lighter model may serve you perfectly.

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

When it comes to water management, tank capacity plays a major role in how long you can stay off the grid. The 2024 Winnebago Solis 59P holds 26 gallons of fresh water compared to 24 gallons in the 2025 Thor Scope 18M, giving it a 2-gallon advantage for extended dry camping. Gray water capacity favors the 2024 Winnebago Solis 59P at 22 gallons versus 15 gallons, which directly affects how often you need to find a dump station. The 2024 Winnebago Solis 59P also leads in black water capacity with 15 gallons compared to 5 gallons, an important consideration for families or full-time travelers.

Electrical systems are increasingly important as RVers rely on more electronics and appliances. Both units arrive with 250W of solar capacity, providing a solid foundation for off-grid power generation. Battery storage gives the edge to the 2024 Winnebago Solis 59P with 450Ah versus 400Ah, translating to longer run times for lights, fans, and charging devices overnight. The 2025 Thor Scope 18M's 3000W inverter can handle heavier loads than the 1500W inverter in the other unit, which matters if you plan to run a microwave, coffee maker, or hair dryer without shore power.

For solo travelers and couples who value maneuverability, the 2024 Winnebago Solis 59P with its more compact footprint will be easier to navigate through tight campgrounds and mountain passes. Families with children should lean toward the 2025 Thor Scope 18M, which sleeps up to 4 and provides more flexibility for overnight guests. Full-time RVers who spend extended periods off-grid will benefit most from the 2024 Winnebago Solis 59P's power setup and the 2024 Winnebago Solis 59P's water reserves, as these directly impact daily comfort and independence from hookups. Weekend warriors and seasonal campers who primarily stay at full-hookup campgrounds may find that the differences in tank sizes and power systems matter less, allowing them to focus on floor plan preference and overall comfort instead.

From a value perspective, the 2024 Winnebago Solis 59P at $120,000 MSRP represents a $3,000 savings over the 2025 Thor Scope 18M at $123,000, a 3% price difference. Breaking it down per sleeping position, the 2024 Winnebago Solis 59P costs roughly $40,000 per berth while the 2025 Thor Scope 18M comes in at $30,750 per berth. On a cost-per-foot basis, the 2024 Winnebago Solis 59P runs about $6,857 per linear foot versus $7,029 for the 2025 Thor Scope 18M, which helps contextualize the value each unit delivers for its size. It is also worth considering that Winnebago and Thor have different dealer networks and warranty programs, which can significantly impact your long-term ownership experience and resale value down the road.