Detailed Evaluation & Buyer Recommendation
Sylvan 1800 Expedition Sport DC 2005 vs Sylvan Mirage 8520 C 2011 — Same Brand, Different Boat
The Sylvan 1800 Expedition Sport DC 2005 vs Sylvan Mirage 8520 C 2011 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.
On paper these two are close siblings in the size department — Sylvan 1800 Expedition Sport DC 2005 at 18,0 ft versus Sylvan Mirage 8520 C 2011 at 20,3 ft. At 127 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.
The power gap is worth calling out. Rated to 150 hp, the Sylvan 1800 Expedition Sport DC 2005 has a 35-hp advantage over the Sylvan Mirage 8520 C 2011's 115-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sylvan 1800 Expedition Sport DC 2005 carries 31 gallons versus 24 gallons in the Sylvan Mirage 8520 C 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 Mirage 8520 C 2011 is rated for 12 passengers, while the Sylvan 1800 Expedition Sport DC 2005 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sylvan Mirage 8520 C 2011 could be the deciding factor.
Bottom line: Choose the Sylvan Mirage 8520 C 2011 if your priority is putting more people on the water — it handles 12 passengers and at 20,3 ft it has the deck room to back that rating up comfortably. The Sylvan 1800 Expedition Sport DC 2005 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 7 that costs less to run day-to-day.
General Boat Info
Model1800 Expedition Sport DC
ModelMirage 8520 C
Model Year2005
Model Year2011
Measurements / Dimensions
Beam - Meters2.31
Beam - Meters2.59
Beam - Inches91
Beam - Inches102
Depth - Detail25 in
Depth - Detailnot available
Depth - Centimeters63.5
Depth - Centimetersnot available
Depth - Inches25
Depth - Inchesnot available
Weight - Detail1,270 lbs
Weight - Detail1,850 lbs
Weight - kg576.06
Weight - kg839.15
Weight - lbs.127
Weight - lbs.185
Width [transom] - Detail90 in
Width [transom] - Detailnot available
Height - Detail33 in
Height - Detailnot available
Height - Meters0.84
Height - Metersnot available
Height - Inches33
Height - Inchesnot available
Height [transom]LS
Height [transom]not available
Length - Feet18
Length - Feet20.25
Length - Inches1
Length - Inchesnot available
Length overall - Detail18 ft. 1 in
Length overall - Detail20 ft. 3 in
Length overall - Meters5.51
Length overall - Meters6.17
Length overall - Inches217
Length overall - Inches243
Body / Hull
Hull thicknessBottom: 0.100 Side: 0.086 0.08
Hull thicknessnot available
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typePontoon
Engine and Drivetrain
Fuel tank capacity - Detail31 gal
Fuel tank capacity - Detail24 gal
Fuel tank capacity - Liters117.35
Fuel tank capacity - Liters90.85
Fuel tank capacity - Gal31
Fuel tank capacity - Gal24
Drive typeOutboard
Drive typenot available
Engine max150 hp
Engine max115 hp
Engine/s standardnot available
Engine/s standardMercury 50 ELPT EFI
Fuel typenot available
Fuel typeGas
Operational Info
Maximum capacity1,625 lbs
Maximum capacity2,000 lbs
Maximum people7
Maximum people12
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter25 in
Tube gaugenot available
Tube gauge0.080 in