Both the EdgeWater 318CC 2013 and the EdgeWater 388CC 2008 are deep-V designs, the first built in composite and the second 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 EdgeWater 388CC 2008 measures 38,0 feet overall (2008), giving it roughly 6,5 additional feet of deck space compared to the EdgeWater 318CC 2013 at 31,5 feet (2013). Weight tells a clearer story for trailering families: the EdgeWater 388CC 2008 tips the scales at 9 600 lbs - 3 100 lbs less than the EdgeWater 318CC 2013 at 6 500 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 1 050 hp, the EdgeWater 388CC 2008 has a 350-hp advantage over the EdgeWater 318CC 2013's 700-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the EdgeWater 388CC 2008 carries 340 gallons versus 300 gallons in the EdgeWater 318CC 2013. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

For family outings this is probably the sharpest distinction between the two. The EdgeWater 318CC 2013 is rated for 12 passengers, while the EdgeWater 388CC 2008 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the EdgeWater 318CC 2013 could be the deciding factor.