When two boats share the same hull type — in this case both the Sylvan Signature 8520 2011 and the Sylvan Signature Sport 8520 RE 2010 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?
Size is the most obvious dividing line here. The Sylvan Signature 8520 2011 measures 20,3 feet overall (2011), giving it roughly 18,3 additional feet of deck space compared to the Sylvan Signature Sport 8520 RE 2010 at 2,0 feet (2010). Weight tells a clearer story for trailering families: the Sylvan Signature 8520 2011 tips the scales at 185 lbs — 166 lbs more than the Sylvan Signature Sport 8520 RE 2010 at 19 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 Sylvan Signature 8520 2011 and 115 hp for the Sylvan Signature Sport 8520 RE 2010. 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 Sylvan Signature Sport 8520 RE 2010 carries 35 gallons versus 3 gallons in the Sylvan Signature 8520 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 Sylvan Signature Sport 8520 RE 2010 is rated for 12 passengers, while the Sylvan Signature 8520 2011 caps at 11. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sylvan Signature Sport 8520 RE 2010 could be the deciding factor.
Bottom line: Choose the Sylvan Signature Sport 8520 RE 2010 if your priority is putting more people on the water — it handles 12 passengers and at 2,0 ft it has the deck room to back that rating up comfortably. The Sylvan Signature 8520 2011 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 11 that costs less to run day-to-day.