The Sea Ray 310 Sundancer 2012 vs Sea Ray Select 220 2007 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 310 Sundancer 2012 measures 31,0 feet overall (2012), giving it roughly 9,0 additional feet of deck space compared to the Sea Ray Select 220 2007 at 22,0 feet (2007). Weight tells a clearer story for trailering families: the Sea Ray Select 220 2007 tips the scales at 4 150 lbs — 2 987 lbs less than the Sea Ray 310 Sundancer 2012 at 1 163 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 — 300 hp for the Sea Ray 310 Sundancer 2012 and 300 hp for the Sea Ray Select 220 2007. 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. Fuel capacity breaks the other way: the Sea Ray 310 Sundancer 2012 carries 125 gallons versus 47 gallons in the Sea Ray Select 220 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The Sea Ray 310 Sundancer 2012 is rated for 9 passengers, while the Sea Ray Select 220 2007 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray 310 Sundancer 2012 could be the deciding factor.