The Pro-Line 20 Sport 2009 is a modified-V design and the Pro-Line 26 Super Sport 2009 is a deep-V design, so you're likely deciding between two noticeably different on-water experiences. Hull type shapes everything from ride quality and fuel burn to dock handling and resale trajectory.
Size is the most obvious dividing line here. The Pro-Line 26 Super Sport 2009 measures 26,0 feet overall (2009), giving it roughly 6,0 additional feet of deck space compared to the Pro-Line 20 Sport 2009 at 20,0 feet (2009). Weight tells a clearer story for trailering families: the Pro-Line 26 Super Sport 2009 tips the scales at 4 400 lbs - 1 800 lbs less than the Pro-Line 20 Sport 2009 at 2 600 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 450 hp, the Pro-Line 26 Super Sport 2009 has a 250-hp advantage over the Pro-Line 20 Sport 2009's 200-hp ceiling - enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Pro-Line 26 Super Sport 2009 carries 156 gallons versus 70 gallons in the Pro-Line 20 Sport 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 Pro-Line 26 Super Sport 2009 is rated for 8 passengers, while the Pro-Line 20 Sport 2009 caps at 6. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Pro-Line 26 Super Sport 2009 could be the deciding factor.
Bottom line: Choose the Pro-Line 26 Super Sport 2009 if your priority is putting more people on the water - it handles 8 passengers and at 26,0 ft it has the deck room to back that rating up comfortably. The Pro-Line 20 Sport 2009 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 6 that costs less to run day-to-day.