The Sea Ray 250 Select EX 2010 is a modified-V design and the Sea Ray 450 Sundancer 2013 is a semi-displacement design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.

Size is the most obvious dividing line here. The Sea Ray 450 Sundancer 2013 measures 45,4 feet overall (2013), giving it roughly 18,9 additional feet of deck space compared to the Sea Ray 250 Select EX 2010 at 26,5 feet (2010). Weight tells a clearer story for trailering families: the Sea Ray 450 Sundancer 2013 tips the scales at 27 205 lbs - 21 813 lbs less than the Sea Ray 250 Select EX 2010 at 5 392 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 250 Select EX 2010 and 380 hp for the Sea Ray 450 Sundancer 2013. 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 450 Sundancer 2013 carries 292 gallons versus 75 gallons in the Sea Ray 250 Select EX 2010. 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 450 Sundancer 2013 is rated for 13 passengers, while the Sea Ray 250 Select EX 2010 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sea Ray 450 Sundancer 2013 could be the deciding factor.