Matching a modified vee Monterey 340SY 2009 against a deep vee Monterey 400SY 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 400SY 2012 measures 41,0 feet overall (2012), giving it roughly 6,0 additional feet of deck space compared to the Monterey 340SY 2009 at 35,0 feet (2009). Weight tells a clearer story for trailering families: the Monterey 340SY 2009 tips the scales at 142 lbs — 120 lbs more than the Monterey 400SY 2012 at 22 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 435 hp, the Monterey 400SY 2012 has a 60-hp advantage over the Monterey 340SY 2009's 375-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 400SY 2012 carries 33 gallons versus 21 gallons in the Monterey 340SY 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.