When two boats share the same hull type — in this case both the Sundance B18CC 2013 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 B18CC 2013 at 17,8 ft versus Sundance F19FLX 2008 at 18,0 ft. Weight tells a clearer story for trailering families: the Sundance B18CC 2013 tips the scales at 1 295 lbs — 190 lbs more than the Sundance F19FLX 2008 at 1 105 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.

Both boats share a closely matched power ceiling — 90 hp for the Sundance B18CC 2013 and 90 hp for the Sundance F19FLX 2008. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Both carry nearly identical fuel loads — 24 gal and 24 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Sundance B18CC 2013 is rated for 6 passengers, while the Sundance F19FLX 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sundance B18CC 2013 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Sundance F19FLX 2008 comes in at 12 lbs per hp versus 14 lbs per hp for the Sundance B18CC 2013. 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.