Matching a modified vee Monterey 318SSX 2010 against a deep vee Monterey 340SY 2012 means you're likely deciding between two genuinely 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 Monterey 340SY 2012 measures 35,3 feet overall (2012), giving it roughly 3,4 additional feet of deck space compared to the Monterey 318SSX 2010 at 31,8 feet (2010). Weight tells a clearer story for trailering families: the Monterey 340SY 2012 tips the scales at 147 lbs — 139 lbs less than the Monterey 318SSX 2010 at 8 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 400 hp, the Monterey 340SY 2012 has a 80-hp advantage over the Monterey 318SSX 2010'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 Monterey 318SSX 2010 carries 142 gallons versus 21 gallons in the Monterey 340SY 2012. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.