The Sundance B18 CC 2006 vs Sundance NX23 2013 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
Size is the most obvious dividing line here. The Sundance NX23 2013 measures 23,1 feet overall (2013), giving it roughly 6,1 additional feet of deck space compared to the Sundance B18 CC 2006 at 17,0 feet (2006). Weight tells a clearer story for trailering families: the Sundance NX23 2013 tips the scales at 2 475 lbs — 1 030 lbs less than the Sundance B18 CC 2006 at 1 445 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 250 hp, the Sundance NX23 2013 has a 160-hp advantage over the Sundance B18 CC 2006'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 Sundance NX23 2013 carries 72 gallons versus 33 gallons in the Sundance B18 CC 2006. 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 Sundance B18 CC 2006 is rated for 9 passengers, while the Sundance NX23 2013 caps at 8. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sundance B18 CC 2006 could be the deciding factor.
Bottom line: Choose the Sundance B18 CC 2006 if your priority is putting more people on the water — it handles 9 passengers and at 17,0 ft it has the deck room to back that rating up comfortably. The Sundance NX23 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 8 that costs less to run day-to-day.