Both the Monterey 320SY 2010 and the Monterey 340SY 2011 are modified-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?

The power gap is worth calling out. Rated to 375 hp, the Monterey 340SY 2011 has a 55-hp advantage over the Monterey 320SY 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 340SY 2011 carries 210 gallons versus 180 gallons in the Monterey 320SY 2010. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.