Both the Sea Ray 310 Sundancer 2009 and the Sea Ray 370 Venture™ 2013 are deep-V designs, both built in fibreglass, so 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 370 Venture™ 2013 measures 37,2 feet overall (2013), giving it roughly 3,8 additional feet of deck space compared to the Sea Ray 310 Sundancer 2009 at 33,3 feet (2009). Weight tells a clearer story for trailering families: the Sea Ray 370 Venture™ 2013 tips the scales at 15 432 lbs - 1 432 lbs less than the Sea Ray 310 Sundancer 2009 at 14 000 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 - 320 hp for the Sea Ray 310 Sundancer 2009 and 300 hp for the Sea Ray 370 Venture™ 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 370 Venture™ 2013 carries 222 gallons versus 200 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.

The Sea Ray 310 Sundancer 2009 is rated for up to 10 people. Passenger data for the Sea Ray 370 Venture™ 2013 wasn't available.