Detailed Evaluation & Buyer Recommendation
Austral Marine Odyssey 650 Sundeck Inboard 2026 vs Austral Marine Odyssey 720 BR Inboard (MerCruiser 6.2L V8) 2023: Same Brand, Different Boat
The Austral Marine Odyssey 650 Sundeck Inboard 2026 vs Austral Marine Odyssey 720 BR Inboard (MerCruiser 6.2L V8) 2023 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 Austral Marine Odyssey 650 Sundeck Inboard 2026 carries a rated maximum of 200 hp. Engine data for the Austral Marine Odyssey 720 BR Inboard (MerCruiser 6.2L V8) 2023 wasn't available in our records - check the manufacturer's spec sheet before sizing a motor.Both carry nearly identical fuel loads - 40 gal and 40 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Austral Marine Odyssey 720 BR Inboard (MerCruiser 6.2L V8) 2023 is rated for 7 passengers, while the Austral Marine Odyssey 650 Sundeck Inboard 2026 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Austral Marine Odyssey 720 BR Inboard (MerCruiser 6.2L V8) 2023 could be the deciding factor.
Bottom line: Choose the Austral Marine Odyssey 720 BR Inboard (MerCruiser 6.2L V8) 2023 if your priority is putting more people on the water - it handles 7 passengers and at 255,0 ft it has the deck room to back that rating up comfortably. The Austral Marine Odyssey 650 Sundeck Inboard 2026 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.
General Boat Info
MakeAustral Marine
MakeAustral Marine
ModelOdyssey 650 Sundeck Inboard
ModelOdyssey 720 BR Inboard (MerCruiser 6.2L V8)
Model Year2026
Model Year2023
Weight - Detail920 kg (boat only, excluding engine)
Weight - Detailnot available
Weight - kg920
Weight - kgnot available
Weight - lbs.2,028
Weight - lbs.not available
Measurements / Dimensions
Length overall - Detail6.55 m (6550 mm)
Length overall - Detail7.75 m
Length overall - Inches257.87
Length overall - Inches305.12
Length overall - Meters6.55
Length overall - Meters7.75
Length - Feet21 ft. 6 in.
Length - Feet25 ft 5 in
Beam2.58 m max (2580 mm)
Beam2.58 m
Beam - Inches101.57
Beam - Inches101.57
Beam - Meters2.58
Beam - Meters2.58
Weight - Detail920 kg (boat only, excluding engine)
Weight - Detailnot available
Weight - kg920
Weight - kgnot available
Weight - lbs.2,028
Weight - lbs.not available
Engine and Drivetrain
Fuel tank capacity - Liters150
Fuel tank capacity - Liters150
Fuel tank capacity - Gal39.63
Fuel tank capacity - Gal39.63
Fuel tank capacity - Detail150 L built-in fuel tank
Fuel tank capacity - Detail150 L
Horsepower200–300 hp
Horsepowernot available
Drive typenot available
Drive typeInboard
Engine makenot available
Engine makeMerCruiser
Engine modelnot available
Engine model6.2L V8
Trailer Info
Trailer - DetailTwo axles; 185 x 14 in tyres; tare 520 kg; GVM 2100 kg; override brakes; swing hitch; mag wheels.
Trailer - Detailnot available
Trailer - Weight520
Trailer - Weightnot available
Options / Other
OptionsColour options; decal/graphic designs; non-slip fiberglass sole; bow filler cushion; cockpit sound system; loose-lay clip-in carpets; wake tower; tower sunshade; Bimini top; cockpit cover; bow cover; trailer winches; trailer tie-down straps.
Options2023 listed equipment: 4 marine speakers; Rockford Fosgate sound system; 2 USB ports; 12V auxiliary plug; 500 GPH bilge pump; built-in switch panels; Danforth anchor; telescopic stainless bow ladder; anchor hatch; fire extinguisher.
Operational Info
Fuel tank capacity - Litersnot available
Fuel tank capacity - Liters150