The Odyssey Millennium 2505M 2003 vs Odyssey V180DC 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 Odyssey V180DC 2005 tops out at 135 hp. Engine specs for the Odyssey Millennium 2505M 2003 aren't listed — confirm with a dealer before selecting an outboard.
For family outings this is probably the sharpest distinction between the two. The Odyssey Millennium 2505M 2003 is rated for 21 passengers, while the Odyssey V180DC 2005 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Odyssey Millennium 2505M 2003 could be the deciding factor.
Bottom line: Choose the Odyssey Millennium 2505M 2003 if your priority is putting more people on the water — it handles 21 passengers and at 24,0 ft it has the deck room to back that rating up comfortably. The Odyssey V180DC 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.