Matching a tunnel SeaArk BayFisher MVJT 2013 against a modified vee SeaArk RiverCat 180 CC 2011 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 BayFisher MVJT 2013 at 20,1 ft versus SeaArk RiverCat 180 CC 2011 at 18,0 ft. Weight tells a clearer story for trailering families: the SeaArk RiverCat 180 CC 2011 tips the scales at 1 193 lbs — 1 074 lbs less than the SeaArk BayFisher MVJT 2013 at 119 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 140 hp, the SeaArk RiverCat 180 CC 2011 has a 25-hp advantage over the SeaArk BayFisher MVJT 2013's 115-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 SeaArk RiverCat 180 CC 2011 is rated for 10 passengers, while the SeaArk BayFisher MVJT 2013 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the SeaArk RiverCat 180 CC 2011 could be the deciding factor.
Bottom line: Choose the SeaArk RiverCat 180 CC 2011 if your priority is putting more people on the water — it handles 10 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The SeaArk BayFisher MVJT 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.