When two boats share the same hull type — in this case both the SunChaser 8520 4-PT. Fish 2012 and the SunChaser DS20 FNC 2011 are pontoon designs with aluminum 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 — SunChaser 8520 4-PT. Fish 2012 at 20,8 ft versus SunChaser DS20 FNC 2011 at 20,3 ft. At 185 lbs and 185 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.
Both boats share a closely matched power ceiling — 115 hp for the SunChaser 8520 4-PT. Fish 2012 and 115 hp for the SunChaser DS20 FNC 2011. 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 SunChaser 8520 4-PT. Fish 2012 carries 24 gallons versus 12 gallons in the SunChaser DS20 FNC 2011. 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 SunChaser DS20 FNC 2011 is rated for 11 passengers, while the SunChaser 8520 4-PT. Fish 2012 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the SunChaser DS20 FNC 2011 could be the deciding factor.
Bottom line: Choose the SunChaser DS20 FNC 2011 if your priority is putting more people on the water — it handles 11 passengers and at 20,3 ft it has the deck room to back that rating up comfortably. The SunChaser 8520 4-PT. Fish 2012 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.