Larson Cabrio 310 2008 vs Larson SEi 180 I/O 2004 - Boat Spec Comparison

Q: Which is easier to trailer — the Larson Cabrio 310 2008 or the Larson SEi 180 I/O 2004?

For trailering, the Larson Cabrio 310 2008 has the edge at 104 lbs dry weight versus 2 365 lbs for the Larson SEi 180 I/O 2004. 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.

Q: Which boat can handle a bigger outboard?

The Larson Cabrio 310 2008 is rated to a maximum of 320 hp, giving it the larger power ceiling. The Larson SEi 180 I/O 2004 tops out at 150 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.

Q: How many passengers can the Larson SEi 180 I/O 2004 carry?

The Larson SEi 180 I/O 2004 has an official capacity rating of 5 people. Capacity data wasn't available for the other model in this comparison — verify directly with the dealer.

Q: Which boat is wider, and does it affect trailering?

The Larson Cabrio 310 2008 measures 126" wide, compared to 93" for the Larson SEi 180 I/O 2004. 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.

Q: Which boat has the larger fuel tank — the Larson Cabrio 310 2008 or the Larson SEi 180 I/O 2004?

The Larson SEi 180 I/O 2004 has the bigger tank at 23 gallons, versus 16 gallons on the Larson Cabrio 310 2008. That 7-gallon difference translates to roughly 21–35 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.

Q: Are the Larson Cabrio 310 2008 and Larson SEi 180 I/O 2004 from the same manufacturer?

Yes — both the Larson Cabrio 310 2008 and the Larson SEi 180 I/O 2004 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.

Boat Comparison

Larson Cabrio 310 2008 vs Larson SEi 180 I/O 2004

Larson

Larson Cabrio 310 2008

2008

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Larson

Larson SEi 180 I/O 2004

2004

View full specs →

Detailed Evaluation & Buyer Recommendation

Larson Cabrio 310 2008 vs Larson SEi 180 I/O 2004 — Same Brand, Different Boat

The Larson Cabrio 310 2008 vs Larson SEi 180 I/O 2004 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 320 hp, the Larson Cabrio 310 2008 has a 170-hp advantage over the Larson SEi 180 I/O 2004's 150-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 SEi 180 I/O 2004 carries 23 gallons versus 16 gallons in the Larson Cabrio 310 2008. 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 310 2008 and its 320-hp ceiling. If fuel economy and quieter running matter more than top-end speed, the Larson SEi 180 I/O 2004 with its 150-hp rating is the more economical daily driver.

General Boat Info

MakeLarson

ModelCabrio 31

ModelSEi 180 I/O

Model Year2008

Model Year2004

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 - Meters9.44

Length - Metersnot available

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 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 typeInboard/Outboard

Drive typenot available

Engine max320 hp

Engine max150 HP

Operational Info

Head1

Headnot available

Headroom6 ft. 3 in. (1.91 m)

Headroomnot available

Water capacity46 gal. (174 l)

Water capacitynot available

Holding tank capacity - Detail37 gal. (140 l)

Holding tank capacity - Detailnot available

Holding tank capacity - Liters140.06

Holding tank capacity - Litersnot available

Holding tank capacity - Gal37

Holding tank capacity - Galnot available

Maximum capacitynot available

Maximum capacity1,275 lbs

Larson Cabrio 310 2008 vs Larson SEi 180 I/O 2004 — Common Questions

Which is easier to trailer — the Larson Cabrio 310 2008 or the Larson SEi 180 I/O 2004?

For trailering, the Larson Cabrio 310 2008 has the edge at 104 lbs dry weight versus 2 365 lbs for the Larson SEi 180 I/O 2004. 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 310 2008 is rated to a maximum of 320 hp, giving it the larger power ceiling. The Larson SEi 180 I/O 2004 tops out at 150 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 I/O 2004 carry?

The Larson SEi 180 I/O 2004 has an official capacity rating of 5 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 310 2008 measures 126" wide, compared to 93" for the Larson SEi 180 I/O 2004. 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 310 2008 or the Larson SEi 180 I/O 2004?

The Larson SEi 180 I/O 2004 has the bigger tank at 23 gallons, versus 16 gallons on the Larson Cabrio 310 2008. 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 Cabrio 310 2008 and Larson SEi 180 I/O 2004 from the same manufacturer?

Yes — both the Larson Cabrio 310 2008 and the Larson SEi 180 I/O 2004 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.

← Larson Cabrio 310 2008 full specs ← Larson SEi 180 I/O 2004 full specs