Matching a pontoon Marathon Grumman Classic 1680CFP 2012 against a modified vee Marathon Seneca 13 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.

On paper these two are close siblings in the size department — Marathon Grumman Classic 1680CFP 2012 at 16,0 ft versus Marathon Seneca 13 2012 at 13,0 ft. Weight tells a clearer story for trailering families: the Marathon Grumman Classic 1680CFP 2012 tips the scales at 146 lbs — 131 lbs more than the Marathon Seneca 13 2012 at 15 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 40 hp, the Marathon Grumman Classic 1680CFP 2012 has a 25-hp advantage over the Marathon Seneca 13 2012's 15-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Marathon Grumman Classic 1680CFP 2012 is rated for 6 passengers, while the Marathon Seneca 13 2012 caps at 4. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Marathon Grumman Classic 1680CFP 2012 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Marathon Seneca 13 2012 comes in at 1 lbs per hp versus 4 lbs per hp for the Marathon Grumman Classic 1680CFP 2012. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.