Larson Cabrio 370 Day Cruiser 2008 boat specs
Larson
Larson Cabrio 370 Day Cruiser 2008
2008
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VS
Larson SEi 180 Fish Series O/B 2005 boat specs
Larson
Larson SEi 180 Fish Series O/B 2005
2005
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Larson Cabrio 370 Day Cruiser 2008 vs Larson SEi 180 Fish Series O/B 2005: Same Brand, Different Boat

The Larson Cabrio 370 Day Cruiser 2008 vs Larson SEi 180 Fish Series O/B 2005 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 420 hp, the Larson Cabrio 370 Day Cruiser 2008 has a 245-hp advantage over the Larson SEi 180 Fish Series O/B 2005's 175-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Larson Cabrio 370 Day Cruiser 2008 carries 266 gallons versus 29 gallons in the Larson SEi 180 Fish Series O/B 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Bottom line: Performance buyers should lean toward the Larson Cabrio 370 Day Cruiser 2008 and its 420-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Larson SEi 180 Fish Series O/B 2005 with its 175-hp rating is the more economical daily driver.
General Boat Info
MakeLarson
MakeLarson
ModelCabrio 370 Day Cruiser
ModelSEi 180 Fish Series O/B
Model Year2008
Model Year2005
Measurements / Dimensions
Beam13 ft. 0 in. (3.96 m)
Beam7 ft. 9 in.
Beam - Meters3.96
Beam - Meters2.36
Beam - Inches156
Beam - Inches93
Bridge clearance - DetailWith Arch: 9 ft. 9 in. (2.97 m)
Bridge clearance - Detailnot available
Bridge clearance - Meters2.97
Bridge clearance - Metersnot available
Bridge clearance - Inches117
Bridge clearance - Inchesnot available
Deadrise22℃
Deadrise21℃
Draft [max] - Detail40 in. (102 cm)
Draft [max] - Detail33 in. max.
Draft [max] - Meters1.02
Draft [max] - Meters0.84
Draft [max] - Inches40
Draft [max] - Inches33
Weight - Detail16,800 lbs. (7,620 kg)
Weight - Detail1,785 lbs. apx.
Weight - kg7620.35
Weight - kg809.66
Weight - lbs.16800
Weight - lbs.1785
Length - Meters11.3
Length - Metersnot available
Length - Feet36
Length - Feetnot available
Length - Inches11
Length - Inchesnot available
Length [over all with swim platform]With Pulpit: 36 ft. 11 in. (11.3 m)
Length [over all with swim platform]not available
Height [transom]not available
Height [transom]20 in.
Length overall - Detailnot available
Length overall - Detail18 ft. 6 in.
Length overall - Metersnot available
Length overall - Meters5.64
Length overall - Inchesnot available
Length overall - Inches222
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Fuel tank capacity - Detail266 gal. (1,006.9 l)
Fuel tank capacity - Detail29 gal.
Fuel tank capacity - Liters1006.92
Fuel tank capacity - Liters109.78
Fuel tank capacity - Gal266
Fuel tank capacity - Gal29
Fuel typeGas or Diesel
Fuel typenot available
Drive typeInboard - Twin
Drive typenot available
Engine max420 hp
Engine max175 HP
Operational Info
Head1
Headnot available
Headroom6 ft. 3 in. (1.91 m)
Headroomnot available
Sleeping capacity6
Sleeping capacitynot available
Water capacity57 gal. (251 l)
Water capacitynot available
Holding tank capacity - Detail35 gal. (132 l)
Holding tank capacity - Detailnot available
Holding tank capacity - Liters132.49
Holding tank capacity - Litersnot available
Holding tank capacity - Gal35
Holding tank capacity - Galnot available
Maximum capacitynot available
Maximum capacity1,880 lbs.
Maximum peoplenot available
Maximum people8 Persons

Larson Cabrio 370 Day Cruiser 2008 vs Larson SEi 180 Fish Series O/B 2005 - Common Questions

Which is easier to trailer - the Larson Cabrio 370 Day Cruiser 2008 or the Larson SEi 180 Fish Series O/B 2005?
For trailering, the Larson SEi 180 Fish Series O/B 2005 has the edge at 1 785 lbs dry weight versus 16 800 lbs for the Larson Cabrio 370 Day Cruiser 2008. 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 Larson Cabrio 370 Day Cruiser 2008 is rated to a maximum of 420 hp, giving it the larger power ceiling. The Larson SEi 180 Fish Series O/B 2005 tops out at 175 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 passengers can the Larson SEi 180 Fish Series O/B 2005 carry?
The Larson SEi 180 Fish Series O/B 2005 has an official capacity rating of 8 people. Capacity data wasn't available for the other model in this comparison - verify directly with the dealer.
Which boat is wider, and does it affect trailering?
The Larson Cabrio 370 Day Cruiser 2008 measures 156" wide, compared to 93" for the Larson SEi 180 Fish Series O/B 2005. The US standard-width towing limit is 8’6" (102") in most states - anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank - the Larson Cabrio 370 Day Cruiser 2008 or the Larson SEi 180 Fish Series O/B 2005?
The Larson Cabrio 370 Day Cruiser 2008 has the bigger tank at 266 gallons, versus 29 gallons on the Larson SEi 180 Fish Series O/B 2005. That 237-gallon difference translates to roughly 711–1185 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson Cabrio 370 Day Cruiser 2008 and Larson SEi 180 Fish Series O/B 2005 from the same manufacturer?
Yes - both the Larson Cabrio 370 Day Cruiser 2008 and the Larson SEi 180 Fish Series O/B 2005 are built by Larson. 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.