Detailed Evaluation & Buyer Recommendation
Crestliner CR 1648 2005 vs Crestliner Grand Cayman 2485 I/O 2008 — Same Brand, Different Boat
The Crestliner CR 1648 2005 vs Crestliner Grand Cayman 2485 I/O 2008 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 Crestliner Grand Cayman 2485 I/O 2008 measures 23,0 feet overall (2008), giving it roughly 8,0 additional feet of deck space compared to the Crestliner CR 1648 2005 at 15,0 feet (2005). Weight tells a clearer story for trailering families: the Crestliner CR 1648 2005 tips the scales at 275 lbs — 273 lbs more than the Crestliner Grand Cayman 2485 I/O 2008 at 2 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 Crestliner CR 1648 2005 carries a rated maximum of 35 hp. Engine data for the Crestliner Grand Cayman 2485 I/O 2008 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.
For family outings this is probably the sharpest distinction between the two. The Crestliner Grand Cayman 2485 I/O 2008 is rated for 12 passengers, while the Crestliner CR 1648 2005 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Crestliner Grand Cayman 2485 I/O 2008 could be the deciding factor.
Bottom line: Choose the Crestliner Grand Cayman 2485 I/O 2008 if your priority is putting more people on the water — it handles 12 passengers and at 23,0 ft it has the deck room to back that rating up comfortably. The Crestliner CR 1648 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 4 that costs less to run day-to-day.
General Boat Info
MakeCrestliner
MakeCrestliner
ModelCR 1648
ModelGrand Cayman 2485 I/O
Model Year2005
Model Year2008
Measurements / Dimensions
Beam70 in. (178 cm)
Beam102 in. (259 cm)
Beam - Meters1.78
Beam - Meters2.59
Beam - Inches7
Beam - Inches102
Depth - Detail21 in. (53 cm)
Depth - Detailnot available
Depth - Centimeters53.34
Depth - Centimetersnot available
Depth - Inches21
Depth - Inchesnot available
Weight - Detail275 lbs. (125 kg)
Weight - Detail2,000 lbs. (907 kg) with 4.3 l
Weight - kg124.74
Weight - kg907.18
Weight - lbs.275
Weight - lbs.2
Width [transom] - Detail48 in. (122 cm)
Width [transom] - Detailnot available
Height [transom]15 in. (38 cm)
Height [transom]not available
Length - Meters4.8
Length - Meters7.1
Length - Feet15
Length - Feet23
Length - Inches1
Length - Inches6
Length overall - Detail15 ft. 10 in. (4.8 m)
Length overall - Detail23 ft. 6 in. (7.1 m)
Length overall - Meters4.83
Length overall - Meters7.16
Length overall - Inches19
Length overall - Inches282
Body / Hull
Hull thickness.072 in
Hull thickness0.080 in
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typePontoon
Engine and Drivetrain
Engine max35 hp
Engine maxnot available
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail35 gal. (132 l)
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters132.49
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal35
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeI/O
Operational Info
Maximum capacity973 lbs. (442 kg)
Maximum capacity3,200 lbs. (1,451 kg)
Maximum people4
Maximum people12
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter27 in. (69 cm)
Number of tubesnot available
Number of tubes2