Larson 310 Cabrio 2010 boat specs
Larson
Larson 310 Cabrio 2010
2010
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VS
Larson SEi 180 Sport 2005 boat specs
Larson
Larson SEi 180 Sport 2005
2005
View full specs →

Larson 310 Cabrio 2010 vs Larson SEi 180 Sport 2005 — Same Brand, Different Boat

The Larson 310 Cabrio 2010 vs Larson SEi 180 Sport 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 Larson 310 Cabrio 2010 carries a rated maximum of 320 hp. Engine data for the Larson SEi 180 Sport 2005 wasn't available in our records — check the manufacturer's spec sheet before sizing a motor.Fuel capacity breaks the other way: the Larson SEi 180 Sport 2005 carries 23 gallons versus 16 gallons in the Larson 310 Cabrio 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Bottom line: The Larson 310 Cabrio 2010 and Larson SEi 180 Sport 2005 are closely matched on the specs that matter most. Test-ride both on the water you actually use, check current dealer pricing, and factor in long-term service access before you sign.
General Boat Info
MakeLarson
MakeLarson
Model310 Cabrio
ModelSEi 180 Sport
Model Year201
Model Year2005
Measurements / Dimensions
Beam10 ft. 6 in. (3.2 m)
Beam7 ft. 9 in
Beam - Meters3.2
Beam - Meters2.36
Beam - Inches126
Beam - Inches93
Bridge clearance - DetailWith Arch: 9 ft. 4 in. (2.84 m)
Bridge clearance - Detailnot available
Bridge clearance - Meters2.84
Bridge clearance - Metersnot available
Bridge clearance - Inches112
Bridge clearance - Inchesnot available
Deadrise20℃
Deadrise21℃
Draft [max] - Detail34 in. (86.4 cm)
Draft [max] - Detail31 in
Draft [max] - Meters0.86
Draft [max] - Meters0.79
Draft [max] - Inches34
Draft [max] - Inches31
Weight - Detail10,400 lbs. (4,717 kg)
Weight - Detail2,365 lbs. apx
Weight - kg4717.36
Weight - kg1072.75
Weight - lbs.104
Weight - lbs.2365
Length - Feet31
Length - Feetnot available
Length [over all with swim platform]With Pulpit: 31 ft. 0 in. (9.44 m)
Length [over all with swim platform]not available
Length overall - Detailnot available
Length overall - Detail17 ft. 6 in
Length overall - Metersnot available
Length overall - Meters5.33
Length overall - Inchesnot available
Length overall - Inches21
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Fuel tank capacity - Detail160 gal. (606 l)
Fuel tank capacity - Detail23 gal
Fuel tank capacity - Liters605.67
Fuel tank capacity - Liters87.06
Fuel tank capacity - Gal16
Fuel tank capacity - Gal23
Fuel typeGas or Diesel
Fuel typenot available
Drive typeI/O - Twin
Drive typenot available
Engine max320 hp
Engine maxnot available
Operational Info
Headroom6 ft. 3 in. (1.91 m)
Headroomnot available
Water capacity46 gal. (174 l) Waste: 37 gal. (140 l)
Water capacitynot available
Maximum capacitynot available
Maximum capacity1,275 lbs
Maximum peoplenot available
Maximum people8 Persons

Larson 310 Cabrio 2010 vs Larson SEi 180 Sport 2005 — Common Questions

Which is easier to trailer — the Larson 310 Cabrio 2010 or the Larson SEi 180 Sport 2005?
For trailering, the Larson 310 Cabrio 2010 has the edge at 104 lbs dry weight versus 2 365 lbs for the Larson SEi 180 Sport 2005. 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.
What is the maximum horsepower rating for these boats?
The Larson 310 Cabrio 2010 has a documented max rating of 320 hp. Engine specifications for the Larson SEi 180 Sport 2005 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many passengers can the Larson SEi 180 Sport 2005 carry?
The Larson SEi 180 Sport 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 310 Cabrio 2010 measures 126" wide, compared to 93" for the Larson SEi 180 Sport 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 310 Cabrio 2010 or the Larson SEi 180 Sport 2005?
The Larson SEi 180 Sport 2005 has the bigger tank at 23 gallons, versus 16 gallons on the Larson 310 Cabrio 2010. That 7-gallon difference translates to roughly 21–35 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Larson 310 Cabrio 2010 and Larson SEi 180 Sport 2005 from the same manufacturer?
Yes — both the Larson 310 Cabrio 2010 and the Larson SEi 180 Sport 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.