Both the Sundance B22CC 2009 and the Sundance SV186 2008 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?
Size is the most obvious dividing line here. The Sundance B22CC 2009 measures 21,8 feet overall (2009), giving it roughly 3,8 additional feet of deck space compared to the Sundance SV186 2008 at 18,0 feet (2008). Weight tells a clearer story for trailering families: the Sundance B22CC 2009 tips the scales at 1 960 lbs - 390 lbs more than the Sundance SV186 2008 at 1 570 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 - 115 hp for the Sundance B22CC 2009 and 115 hp for the Sundance SV186 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. Fuel capacity breaks the other way: the Sundance SV186 2008 carries 40 gallons versus 33 gallons in the Sundance B22CC 2009. 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 B22CC 2009 is rated for 6 passengers, while the Sundance SV186 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 B22CC 2009 could be the deciding factor.
Bottom line: Choose the Sundance B22CC 2009 if your priority is putting more people on the water - it handles 6 passengers and at 21,8 ft it has the deck room to back that rating up comfortably. The Sundance SV186 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.