The Sea Ray 48 Sundancer 2005 vs Sea Ray 580 Sedan Bridge 2012 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.

Size is the most obvious dividing line here. The Sea Ray 580 Sedan Bridge 2012 measures 58,6 feet overall (2012), giving it roughly 7,6 additional feet of deck space compared to the Sea Ray 48 Sundancer 2005 at 51,0 feet (2005). Weight tells a clearer story for trailering families: the Sea Ray 580 Sedan Bridge 2012 tips the scales at 515 lbs — 487 lbs less than the Sea Ray 48 Sundancer 2005 at 28 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

The Sea Ray 580 Sedan Bridge 2012 tops out at 861 hp. Engine specs for the Sea Ray 48 Sundancer 2005 aren't listed — confirm with a dealer before selecting an outboard.Both carry nearly identical fuel loads — 4 gal and 7 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Sea Ray 580 Sedan Bridge 2012 is rated for 17 passengers, while the Sea Ray 48 Sundancer 2005 caps at 15. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray 580 Sedan Bridge 2012 could be the deciding factor.