The Austral Marine Odyssey 650 Inboard (MerCruiser 6.2L V8 300hp) 2025 vs Austral Marine Odyssey 720 Inboard (MerCruiser 6.2L V8 350hp) 2025 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 350 hp, the Austral Marine Odyssey 720 Inboard (MerCruiser 6.2L V8 350hp) 2025 has a 50-hp advantage over the Austral Marine Odyssey 650 Inboard (MerCruiser 6.2L V8 300hp) 2025's 300-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 Austral Marine Odyssey 720 Inboard (MerCruiser 6.2L V8 350hp) 2025 is rated for 7 passengers, while the Austral Marine Odyssey 650 Inboard (MerCruiser 6.2L V8 300hp) 2025 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 Inboard (MerCruiser 6.2L V8 350hp) 2025 could be the deciding factor.
Bottom line: Choose the Austral Marine Odyssey 720 Inboard (MerCruiser 6.2L V8 350hp) 2025 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 Inboard (MerCruiser 6.2L V8 300hp) 2025 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.