The Sea Ray 320 Sundancer 2006 vs Sea Ray 390 Sedan Bridge 2010 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 390 Sedan Bridge 2010 measures 38,3 feet overall (2010), giving it roughly 3,3 additional feet of deck space compared to the Sea Ray 320 Sundancer 2006 at 35,0 feet (2006). Weight tells a clearer story for trailering families: the Sea Ray 320 Sundancer 2006 tips the scales at 138 lbs — 116 lbs more than the Sea Ray 390 Sedan Bridge 2010 at 22 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.

Both boats share a closely matched power ceiling — 375 hp for the Sea Ray 320 Sundancer 2006 and 370 hp for the Sea Ray 390 Sedan Bridge 2010. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads — 2 gal and 3 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Sea Ray 390 Sedan Bridge 2010 is rated for 11 passengers, while the Sea Ray 320 Sundancer 2006 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray 390 Sedan Bridge 2010 could be the deciding factor.