Both the Sundance B20CC 2011 and the Sundance SV17 2013 are modified-V designs, both built in fibreglass, so 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 B20CC 2011 at 19,8 ft versus Sundance SV17 2013 at 17,1 ft. Weight tells a clearer story for trailering families: the Sundance B20CC 2011 tips the scales at 1 470 lbs - 220 lbs more than the Sundance SV17 2013 at 1 250 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 - 130 hp for the Sundance B20CC 2011 and 115 hp for the Sundance SV17 2013. 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 - 33 gal and 34 gal - so range won't be a tiebreaker here.
For family outings this is probably the sharpest distinction between the two. The Sundance B20CC 2011 is rated for 8 passengers, while the Sundance SV17 2013 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sundance B20CC 2011 could be the deciding factor.
Bottom line: Choose the Sundance B20CC 2011 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 SV17 2013 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.