The Sea Ray 310 Sundancer 2009 vs Sea Ray Sundancer 320 Outboard 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.

On paper these two are close siblings in the size department — Sea Ray 310 Sundancer 2009 at 33,3 ft versus Sea Ray Sundancer 320 Outboard 2023 at 34,1 ft. Weight tells a clearer story for trailering families: the Sea Ray Sundancer 320 Outboard 2023 tips the scales at 13 681 lbs — 13 667 lbs less than the Sea Ray 310 Sundancer 2009 at 14 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 power gap is worth calling out. Rated to 350 hp, the Sea Ray Sundancer 320 Outboard 2023 has a 30-hp advantage over the Sea Ray 310 Sundancer 2009's 320-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sea Ray Sundancer 320 Outboard 2023 carries 158 gallons versus 2 gallons in the Sea Ray 310 Sundancer 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 10 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.