Both the Twin Vee Catamarans 17 ft. Classic 2009 and the Twin Vee Catamarans 19 ft. Bay Cat 2011 are catamaran 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?
On paper these two are close siblings in the size department - Twin Vee Catamarans 17 ft. Classic 2009 at 16,0 ft versus Twin Vee Catamarans 19 ft. Bay Cat 2011 at 18,7 ft. Weight tells a clearer story for trailering families: the Twin Vee Catamarans 19 ft. Bay Cat 2011 tips the scales at 1 740 lbs - 890 lbs less than the Twin Vee Catamarans 17 ft. Classic 2009 at 850 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 Twin Vee Catamarans 19 ft. Bay Cat 2011 has a 80-hp advantage over the Twin Vee Catamarans 17 ft. Classic 2009's 60-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Twin Vee Catamarans 19 ft. Bay Cat 2011 carries 36 gallons versus 12 gallons in the Twin Vee Catamarans 17 ft. Classic 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
Both boats are rated for 5 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.
Bottom line: The Twin Vee Catamarans 19 ft. Bay Cat 2011 at 18,7 ft is the right call if deck space, comfort, and entertaining are top of your list. The Twin Vee Catamarans 17 ft. Classic 2009 at 16,0 ft wins on trailering ease, likely lower purchase price, and simpler docking - a solid choice for a buyer who wants more boat for less money.