Detailed Evaluation & Buyer Recommendation
Glastron GS 259 2006 vs Glastron GT 185 SF 2012 — Same Brand, Different Boat
The Glastron GS 259 2006 vs Glastron GT 185 SF 2012 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
Size is the most obvious dividing line here. The Glastron GS 259 2006 measures 24,0 feet overall (2006), giving it roughly 5,6 additional feet of deck space compared to the Glastron GT 185 SF 2012 at 18,4 feet (2012). Weight tells a clearer story for trailering families: the Glastron GS 259 2006 tips the scales at 5 535 lbs — 3 200 lbs more than the Glastron GT 185 SF 2012 at 2 335 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
The power gap is worth calling out. Rated to 320 hp, the Glastron GS 259 2006 has a 100-hp advantage over the Glastron GT 185 SF 2012's 220-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Glastron GS 259 2006 carries 56 gallons versus 24 gallons in the Glastron GT 185 SF 2012. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Glastron GT 185 SF 2012 is rated for 8 passengers, while the Glastron GS 259 2006 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Glastron GT 185 SF 2012 could be the deciding factor.
Bottom line: Choose the Glastron GT 185 SF 2012 if your priority is putting more people on the water — it handles 8 passengers and at 18,4 ft it has the deck room to back that rating up comfortably. The Glastron GS 259 2006 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.
General Boat Info
ModelGS 259
ModelGT 185 SF
Model Year2006
Model Year2012
Measurements / Dimensions
Beam102 in. (2.59 m)
Beam88 in. (2.24 m)
Beam - Meters2.59
Beam - Meters2.24
Beam - Inches102
Beam - Inches88
Deadrise20℃
Deadrise21℃
Depth - Detail84 in. (2.13 m) Cockpit: 36 in. (.91 m)
Depth - Detail44 in. (1.12 m) Cockpit: 28.5 in. (0.72 m)
Depth - Centimeters213.36
Depth - Centimeters111.76
Depth - Inches84
Depth - Inches44
Draft [max] - Detail36 in. (.91 m)
Draft [max] - Detail31 in. (0.79 m)
Draft [max] - Meters0.91
Draft [max] - Meters0.79
Draft [max] - Inches36
Draft [max] - Inches31
Weight - Detailw/ 5.7 Gi Volvo Penta?: 5,535 lbs. (2,511 kg)
Weight - Detail2,335 lbs. (1,059 kg)
Weight - kg2510.63
Weight - kg1059.14
Weight - lbs.5535
Weight - lbs.2335
Width [transom] - Detail98 in. (2.49 m)
Width [transom] - Detail86 in. (2.18 m)
Length - Feet24
Length - Feet18.42
Length - Inches1
Length - Inchesnot available
Length overall - Detail24 ft. 10 in. (7.57 m)
Length overall - Detail18 ft. 5 in. (5.61 m)
Length overall - Meters7.57
Length overall - Meters5.61
Length overall - Inches298
Length overall - Inches221
Engine and Drivetrain
Engine/s standard5.0 GL Volvo Penta?
Engine/s standardnot available
Fuel tank capacity - Detail56 gal. (212 l)
Fuel tank capacity - Detail24 gal. (91 l)
Fuel tank capacity - Liters211.98
Fuel tank capacity - Liters90.85
Fuel tank capacity - Gal56
Fuel tank capacity - Gal24
Drive typeI/O
Drive typeI/O
Engine max320 hp
Engine max220 hp
Engine makenot available
Engine makeMercury
Engine modelnot available
Engine model3.0L MPI EC MerCruiser (WPS)
Fuel typenot available
Fuel typeGas
Horsepowernot available
Horsepower135 hp
Operational Info
Maximum capacity2,240 lbs. (1,016 kg)
Maximum capacity1,150 lbs. (522 kg)
Maximum peoplenot available
Maximum people8 or 1,100 lbs. (499 kg)
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeDeep Vee
Trailer Info
Trailer - Length over allnot available
Trailer - Length over all21 ft. 10 in. (6.65 m)