When two boats share the same hull type — in this case both the Sea Ray 235 Weekender 2012 and the Sea Ray 310 Sundancer 2012 are deep vee designs with fiberglass construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

Size is the most obvious dividing line here. The Sea Ray 310 Sundancer 2012 measures 31,0 feet overall (2012), giving it roughly 6,4 additional feet of deck space compared to the Sea Ray 235 Weekender 2012 at 24,6 feet (2012). Weight tells a clearer story for trailering families: the Sea Ray 310 Sundancer 2012 tips the scales at 1 163 lbs — 686 lbs less than the Sea Ray 235 Weekender 2012 at 477 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 235 Weekender 2012 and 300 hp for the Sea Ray 310 Sundancer 2012. 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 5 gallons in the Sea Ray 235 Weekender 2012. 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 235 Weekender 2012 caps at 7. 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.