When two boats share the same hull type — in this case both the Sundance F17FLX 2010 and the Sundance F19FLX 2008 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 F17FLX 2010 at 16,8 ft versus Sundance F19FLX 2008 at 18,0 ft. Weight tells a clearer story for trailering families: the Sundance F19FLX 2008 tips the scales at 1 105 lbs — 1 004 lbs less than the Sundance F17FLX 2010 at 101 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 90 hp, the Sundance F19FLX 2008 has a 40-hp advantage over the Sundance F17FLX 2010's 50-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Both carry nearly identical fuel loads — 24 gal and 24 gal — so range won't be a tiebreaker here.

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.

At this size, power-to-weight ratio matters more than outright horsepower. The Sundance F17FLX 2010 comes in at 2 lbs per hp versus 12 lbs per hp for the Sundance F19FLX 2008. 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.