Matching a tunnel SeaArk 1660MVJT 2012 against a modified vee SeaArk Forecast 170C 2010 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 — SeaArk 1660MVJT 2012 at 16,0 ft versus SeaArk Forecast 170C 2010 at 17,0 ft. Weight tells a clearer story for trailering families: the SeaArk Forecast 170C 2010 tips the scales at 775 lbs — 300 lbs less than the SeaArk 1660MVJT 2012 at 475 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 75 hp, the SeaArk Forecast 170C 2010 has a 25-hp advantage over the SeaArk 1660MVJT 2012's 50-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

Both boats are rated for 4 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

At this size, power-to-weight ratio matters more than outright horsepower. The SeaArk 1660MVJT 2012 comes in at 10 lbs per hp versus 10 lbs per hp for the SeaArk Forecast 170C 2010. 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.