When two boats share the same hull type — in this case both the Sundance FX19 Vapor 2011 and the Sundance NX19 2011 are modified vee designs with fiberglass construction — 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 — Sundance FX19 Vapor 2011 at 19,1 ft versus Sundance NX19 2011 at 18,8 ft. Weight tells a clearer story for trailering families: the Sundance NX19 2011 tips the scales at 1 475 lbs — 1 373 lbs less than the Sundance FX19 Vapor 2011 at 102 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 150 hp, the Sundance FX19 Vapor 2011 has a 35-hp advantage over the Sundance NX19 2011's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 31 gal and 29 gal — so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Sundance NX19 2011 is rated for 6 passengers, while the Sundance FX19 Vapor 2011 caps at 3. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sundance NX19 2011 could be the deciding factor.
Bottom line: Choose the Sundance NX19 2011 if your priority is putting more people on the water — it handles 6 passengers and at 18,8 ft it has the deck room to back that rating up comfortably. The Sundance FX19 Vapor 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 3 that costs less to run day-to-day.