Mariah G25 2010 boat specs
Mariah
Mariah G25 2010
2010
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Mariah R23 2012 boat specs
Mariah
Mariah R23 2012
2012
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Mariah G25 2010 vs Mariah R23 2012 — A Close Look at Two Modified Vees

When two boats share the same hull type — in this case both the Mariah G25 2010 and the Mariah R23 2012 are modified vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department — Mariah G25 2010 at 25,2 ft versus Mariah R23 2012 at 23,4 ft. At 49 lbs and 4 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 425 hp, the Mariah G25 2010 has a 105-hp advantage over the Mariah R23 2012's 320-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Mariah R23 2012 carries 52 gallons versus 9 gallons in the Mariah G25 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 12 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: Performance buyers should lean toward the Mariah G25 2010 and its 425-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Mariah R23 2012 with its 320-hp rating is the more economical daily driver.
General Boat Info
MakeMariah
MakeMariah
ModelG25
ModelR23
Model Year201
Model Year2012
Measurements / Dimensions
Beam8 ft. 6 in. (2.6 m)
Beam8 ft. 6 in. (2.5 m)
Beam - Meters2.59
Beam - Meters2.59
Beam - Inches102
Beam - Inches102
Deadrise20℃
Deadrise21°
Weight - Detail4,250 lbs. (1,928 kg) Maximum: 4,900 lbs. (2,223 kg)
Weight - DetailDry: 4,000 lbs. (1,814 kg)
Weight - kg2222.6
Weight - kg1814.37
Weight - lbs.49
Weight - lbs.4
Length - Meters7.7
Length - Metersnot available
Length - Feet25.17
Length - Feet23.42
Length overall - Detail25 ft. 2 in. (7.7 m)
Length overall - Detail23 ft. 5 in. (7.1 m)
Length overall - Meters7.67
Length overall - Meters7.14
Length overall - Inches302
Length overall - Inches281
Body / Hull
Hull materialFiberglass
Hull materialAluminum
Hull typeModified Vee
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail90 gal. (341 l)
Fuel tank capacity - Detail52 gal. (197 l)
Fuel tank capacity - Liters340.69
Fuel tank capacity - Liters196.84
Fuel tank capacity - Gal9
Fuel tank capacity - Gal52
Fuel typeGas
Fuel typeGas
Drive typeI/O
Drive typeI/O
Engine max425 hp (317 kW)
Engine maxnot available
Horsepowernot available
Horsepower320 hp (239 kW)
Performance
Maximum speed50-60 mph
Maximum speed50 - 60 mph
Operational Info
Maximum capacity2,250 lbs. (1,021 kg)
Maximum capacity2,250 lbs. (1,021 kg)
Maximum people12
Maximum people12

Mariah G25 2010 vs Mariah R23 2012 — Common Questions

Which is the larger boat — the Mariah G25 2010 or the Mariah R23 2012?
The Mariah G25 2010 is the longer of the two at 25,2 feet overall. The Mariah R23 2012 comes in at 23,4 feet, making it roughly 1,8 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Mariah G25 2010 or the Mariah R23 2012?
For trailering, the Mariah R23 2012 has the edge at 4 lbs dry weight versus 49 lbs for the Mariah G25 2010. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
Which boat can handle a bigger outboard?
The Mariah G25 2010 is rated to a maximum of 425 hp, giving it the larger power ceiling. The Mariah R23 2012 tops out at 320 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Mariah G25 2010 is Coast Guard rated for 12 passengers, while the Mariah R23 2012 is certified for 12. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Mariah G25 2010 and Mariah R23 2012 share an 8 ft. 6 in. (2.6 m) beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
Which boat has the larger fuel tank — the Mariah G25 2010 or the Mariah R23 2012?
The Mariah R23 2012 has the bigger tank at 52 gallons, versus 9 gallons on the Mariah G25 2010. That 43-gallon difference translates to roughly 129–215 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Mariah G25 2010 and Mariah R23 2012 from the same manufacturer?
Yes — both the Mariah G25 2010 and the Mariah R23 2012 are built by Mariah. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.