Detailed Evaluation & Buyer Recommendation
Crestliner CR 1648 M 2004 vs Crestliner Grand Cayman 2685 I/O 2010 — Same Brand, Different Boat
The Crestliner CR 1648 M 2004 vs Crestliner Grand Cayman 2685 I/O 2010 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.
The power gap is worth calling out. Rated to 35 hp, the Crestliner CR 1648 M 2004 has a 32-hp advantage over the Crestliner Grand Cayman 2685 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 2685 I/O 2010 is rated for 14 passengers, while the Crestliner CR 1648 M 2004 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 2685 I/O 2010 could be the deciding factor.
Bottom line: Choose the Crestliner Grand Cayman 2685 I/O 2010 if your priority is putting more people on the water — it handles 14 passengers and at 25,5 ft it has the deck room to back that rating up comfortably. The Crestliner CR 1648 M 2004 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 M
ModelGrand Cayman 2685 I/O
Model Year2004
Model Year201
Measurements / Dimensions
Beam70 in
Beam102 in. (259 cm)
Beam - Meters1.78
Beam - Meters2.59
Beam - Inches7
Beam - Inches102
Weight - Detail275 lbs
Weight - Detail3,400 lbs. (1,542 kg) 3,719 lbs. (1,687 kg) with Tritoon
Weight - kg124.74
Weight - kg1686.91
Weight - lbs.275
Weight - lbs.3719
Height - Detail21 in
Height - Detailnot available
Height - Meters0.53
Height - Metersnot available
Height - Inches21
Height - Inchesnot available
Height [transom]15 in
Height [transom]not available
Length overall - Detail15 ft. 10 in
Length overall - Detail25 ft. 6 in. (7.8 m)
Length overall - Meters4.83
Length overall - Meters7.77
Length overall - Inches19
Length overall - Inches306
Length [at waterline]not available
Length [at waterline]24 ft. (7.3 m) tube length
Length - Feetnot available
Length - Feet25.5
Body / Hull
Hull materialAluminum
Hull materialAluminum
Hull typenot available
Hull typePontoon
Engine and Drivetrain
Engine max35
Engine max3.0 - 5.0 l 3.0 - 5.7 l with Tritoon
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail35 gal. (132 l) 56 gal. (212 l) with Tritoon
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters211.98
Fuel tank capacity - Galnot available
Fuel tank capacity - Gal56
Fuel typenot available
Fuel typeGas
Drive typenot available
Drive typeI/O
Operational Info
Maximum capacity973 lbs
Maximum capacity2,000 lbs. (907 kg)
Maximum people4 Persons
Maximum people14
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter27 in. (69 cm)
Tube gaugenot available
Tube gauge0.080 in. tube 0.090 in. nose cone
Number of tubesnot available
Number of tubes2 or 3