2024 Thor Palazzo 37.5 vs 2025 Holiday Rambler Admiral 28A

Two noteworthy RVs face off: the 2024 Thor Palazzo 37.5 and the 2025 Holiday Rambler Admiral 28A. From dimensions to amenities, here's the full breakdown.

Specifications Comparison

Specification2024 Thor Palazzo 37.52025 Holiday Rambler Admiral 28AAdvantage
CategoryClass AClass A
Year202420252025 Holiday Rambler Admiral 28A
Length41.5 ft37 ft
Width8 ft8 ft
Height12 ft12 ft
Dry Weight17,500 lbs21,000 lbs
GVWR19,800 lbs24,900 lbs
Sleeping Capacity682025 Holiday Rambler Admiral 28A
Fresh Water74 gal74 galTie
Gray Water80 gal66 gal2024 Thor Palazzo 37.5
Black Water40 gal36 gal2024 Thor Palazzo 37.5
Fuel Capacity80 gal117 gal2025 Holiday Rambler Admiral 28A
Horsepower438 hp386 hp2024 Thor Palazzo 37.5
EngineCummins ISL 8.9LCummins ISB 6.7L
Slide-Outs22Tie
Solar450 W600 W2025 Holiday Rambler Admiral 28A
Battery100 Ah350 Ah2025 Holiday Rambler Admiral 28A
Inverter3,000 W2,000 W2024 Thor Palazzo 37.5
MSRP$516,000$523,0002024 Thor Palazzo 37.5

Detailed Comparison

Two noteworthy RVs face off: the 2024 Thor Palazzo 37.5 and the 2025 Holiday Rambler Admiral 28A. From dimensions to amenities, here's the full breakdown.

Dimensionally, you're looking at 41.5 ft for the Thor Palazzo 37.5 and 37.0 ft for the Holiday Rambler Admiral 28A. The Holiday Rambler Admiral 28A carries an extra 3,500 lbs, which affects tow vehicle requirements and fuel economy.

Capacity-wise, expect to sleep 6 in the Thor Palazzo 37.5 versus 8 in the Holiday Rambler Admiral 28A. With 2 and 2 slide-outs respectively, the parked floor plans differ significantly.

Tank capacities are a key off-grid consideration. The Thor Palazzo 37.5 carries 74 gal of fresh water, 80 gal gray, and 40 gal black. The Holiday Rambler Admiral 28A offers 74 gal fresh, 66 gal gray, and 36 gal black. The Holiday Rambler Admiral 28A has the edge for extended dry camping.

Budget-wise, the Thor Palazzo 37.5 is listed at $516,000 compared to $523,000 for the Holiday Rambler Admiral 28A.

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.

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

Individual Overviews

2024 Thor Palazzo 37.5

  • Category: Class A
  • Length: 41.5 ft
  • Weight: 17,500 lbs
  • Sleeps: 6
  • MSRP: $516,000
View Full Specs

2025 Holiday Rambler Admiral 28A

  • Category: Class A
  • Length: 37 ft
  • Weight: 21,000 lbs
  • Sleeps: 8
  • MSRP: $523,000
View Full Specs