Detailed Evaluation & Buyer Recommendation
Crestliner Grand Cayman 2885 I/O 2010 vs Crestliner Sportsman 18 SS 2006 — Same Brand, Different Boat
Matching a pontoon Crestliner Grand Cayman 2885 I/O 2010 against a modified vee Crestliner Sportsman 18 SS 2006 means you're likely deciding between two genuinely different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
Size is the most obvious dividing line here. The Crestliner Grand Cayman 2885 I/O 2010 measures 27,5 feet overall (2010), giving it roughly 9,5 additional feet of deck space compared to the Crestliner Sportsman 18 SS 2006 at 18,0 feet (2006). Weight tells a clearer story for trailering families: the Crestliner Grand Cayman 2885 I/O 2010 tips the scales at 387 lbs — 320 lbs more than the Crestliner Sportsman 18 SS 2006 at 67 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 50 hp, the Crestliner Sportsman 18 SS 2006 has a 47-hp advantage over the Crestliner Grand Cayman 2885 I/O 2010's 3-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.
For family outings this is probably the sharpest distinction between the two. The Crestliner Grand Cayman 2885 I/O 2010 is rated for 16 passengers, while the Crestliner Sportsman 18 SS 2006 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Grand Cayman 2885 I/O 2010 could be the deciding factor.
Bottom line: Choose the Crestliner Grand Cayman 2885 I/O 2010 if your priority is putting more people on the water — it handles 16 passengers and at 27,5 ft it has the deck room to back that rating up comfortably. The Crestliner Sportsman 18 SS 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
MakeCrestliner
MakeCrestliner
ModelGrand Cayman 2885 I/O
ModelSportsman 18 SS
Model Year201
Model Year2006
Measurements / Dimensions
Beam102 in. (259 cm)
Beam78 in. (198 cm)
Beam - Meters2.59
Beam - Meters1.98
Beam - Inches102
Beam - Inches78
Weight - Detail3,750 lbs. (1,701 kg) 3,870 lbs. (1,755 kg) with Tritoon
Weight - Detail670 lbs. (304 kg)
Weight - kg1755.4
Weight - kg303.91
Weight - lbs.387
Weight - lbs.67
Length [at waterline]26 ft. (7.9 m) tube length
Length [at waterline]not available
Length - Feet27.5
Length - Feet18
Length overall - Detail27 ft. 6 in. (8.4 m)
Length overall - Detail18 ft. 0 in. (5.5 m)
Length overall - Meters8.38
Length overall - Meters5.49
Length overall - Inches33
Length overall - Inches216
Deadrisenot available
Deadrise10℃
Width [transom] - Detailnot available
Width [transom] - Detail78 in. (198 cm)
Height - Detailnot available
Height - Detail33.5 in. (85 cm)
Height - Metersnot available
Height - Meters0.86
Height - Inchesnot available
Height - Inches33.5
Height [transom]not available
Height [transom]20 in. (51 cm)
Length - Metersnot available
Length - Meters5.5
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull typePontoon
Hull typeModified Vee
Hull thicknessnot available
Hull thicknessBottom: .100 Sides: .090 Transom: .125
Pontoon and Inflatable Specific
Tube diameter27 in. (69 cm)
Tube diameternot available
Tube gauge0.080 in. tube 0.090 in. nose cone
Tube gaugenot available
Number of tubes2 or 3
Number of tubesnot available
Engine and Drivetrain
Fuel tank capacity - Detail35 gal. (132 l) 56 gal. (212 l) with Tritoon
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters211.98
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal56
Fuel tank capacity - Galnot available
Fuel typeGas
Fuel typenot available
Drive typeI/O
Drive typeOutboard
Engine max3.0 l - 350 Mag
Engine max50 hp
Engine/s standardnot available
Engine/s standard25ML
Operational Info
Maximum capacity2,500 lbs. (1,134 kg)
Maximum capacity1,390 lbs. (630 kg)
Maximum people16
Maximum people7