Both the Cobia Boats 172CC 2013 and the Cobia Boats 296 CC 2009 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?
Size is the most obvious dividing line here. The Cobia Boats 296 CC 2009 measures 29,0 feet overall (2009), giving it roughly 11,8 additional feet of deck space compared to the Cobia Boats 172CC 2013 at 17,2 feet (2013). Weight tells a clearer story for trailering families: the Cobia Boats 296 CC 2009 tips the scales at 5 915 lbs - 4 115 lbs less than the Cobia Boats 172CC 2013 at 1 800 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 500 hp, the Cobia Boats 296 CC 2009 has a 410-hp advantage over the Cobia Boats 172CC 2013's 90-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Cobia Boats 296 CC 2009 carries 240 gallons versus 33 gallons in the Cobia Boats 172CC 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 Cobia Boats 296 CC 2009 is rated for 9 passengers, while the Cobia Boats 172CC 2013 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Cobia Boats 296 CC 2009 could be the deciding factor.
Bottom line: Choose the Cobia Boats 296 CC 2009 if your priority is putting more people on the water - it handles 9 passengers and at 29,0 ft it has the deck room to back that rating up comfortably. The Cobia Boats 172CC 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.