When two boats share the same hull type — in this case both the Sundance B20CCR 2013 and the Sundance SV171 2009 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 B20CCR 2013 at 19,8 ft versus Sundance SV171 2009 at 17,1 ft. Weight tells a clearer story for trailering families: the Sundance B20CCR 2013 tips the scales at 1 525 lbs — 1 382 lbs more than the Sundance SV171 2009 at 143 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 130 hp, the Sundance B20CCR 2013 has a 40-hp advantage over the Sundance SV171 2009'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 SV171 2009 carries 34 gallons versus 24 gallons in the Sundance B20CCR 2013. 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 B20CCR 2013 is rated for 8 passengers, while the Sundance SV171 2009 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sundance B20CCR 2013 could be the deciding factor.
Bottom line: Choose the Sundance B20CCR 2013 if your priority is putting more people on the water — it handles 8 passengers and at 19,8 ft it has the deck room to back that rating up comfortably. The Sundance SV171 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.