Matching a deep vee Monterey 318SSX 2009 against a modified vee Monterey 340SY 2011 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 2011 measures 35,3 feet overall (2011), giving it roughly 4,3 additional feet of deck space compared to the Monterey 318SSX 2009 at 31,0 feet (2009). Weight tells a clearer story for trailering families: the Monterey 340SY 2011 tips the scales at 142 lbs — 134 lbs less than the Monterey 318SSX 2009 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 375 hp, the Monterey 340SY 2011 has a 55-hp advantage over the Monterey 318SSX 2009'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 2009 carries 142 gallons versus 21 gallons in the Monterey 340SY 2011. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.