Detailed Evaluation & Buyer Recommendation
Sea Ray 390 Motor Yacht 2005 vs Sea Ray 580 Sundancer 2012 — Same Brand, Different Boat
The Sea Ray 390 Motor Yacht 2005 vs Sea Ray 580 Sundancer 2012 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.
Size is the most obvious dividing line here. The Sea Ray 390 Motor Yacht 2005 measures 41,0 feet overall (2005), giving it roughly 35,0 additional feet of deck space compared to the Sea Ray 580 Sundancer 2012 at 6,0 feet (2012). Weight tells a clearer story for trailering families: the Sea Ray 580 Sundancer 2012 tips the scales at 535 lbs — 270 lbs less than the Sea Ray 390 Motor Yacht 2005 at 265 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 Sea Ray 580 Sundancer 2012 tops out at 1 051 hp. Engine specs for the Sea Ray 390 Motor Yacht 2005 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Sea Ray 580 Sundancer 2012 carries 825 gallons versus 3 gallons in the Sea Ray 390 Motor Yacht 2005. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
The Sea Ray 390 Motor Yacht 2005 is rated for up to 12 people. Passenger data for the Sea Ray 580 Sundancer 2012 wasn't available.
Bottom line: The Sea Ray 390 Motor Yacht 2005 at 41,0 ft is the right call if deck space, comfort, and entertaining are top of your list. The Sea Ray 580 Sundancer 2012 at 6,0 ft wins on trailering ease, likely lower purchase price, and simpler docking — a solid choice for a buyer who wants more boat for less money.
General Boat Info
Model390 Motor Yacht
Model580 Sundancer?
Model Year2005
Model Year2012
Measurements / Dimensions
Beam14 ft. 3 in. (4.34 m)
Beam15 ft. 11 in. (4.85 m)
Beam - Meters4.34
Beam - Meters4.85
Beam - Inches171
Beam - Inches191
Deadrise15℃
Deadrise17℃
Draft [max] - Detail36 in. (91.4 cm)
Draft [max] - Detail54 in. (137 cm)
Draft [max] - Meters0.91
Draft [max] - Meters1.37
Draft [max] - Inches36
Draft [max] - Inches54
Weight - Detail26,500 lbs. (12,020 kg)
Weight - Detail53,500 lbs. (24,267 kg)
Weight - kg12020.19
Weight - kg24267.17
Weight - lbs.265
Weight - lbs.535
Length - Meters12.72
Length - Metersnot available
Length - Feet41
Length - Feet6
Length - Inches9
Length - Inchesnot available
Length overall - Detail41 ft. 9 in. (12.72 m)
Length overall - Detailnot available
Length overall - Meters12.73
Length overall - Metersnot available
Length overall - Inches501
Length overall - Inchesnot available
Length [over all with swim platform]not available
Length [over all with swim platform]60 ft. (18.29 m)
Engine and Drivetrain
Engine/s standardT-8.1 S Horizon MerCruiser? Gasoline Inboards (T-370 hp - 276 kw)
Engine/s standardT-VD MAN 800 CRM
Fuel tank capacity - Detail300 gal. (1,136 l)
Fuel tank capacity - Detail825 gal. (3,123 l)
Fuel tank capacity - Liters1135.62
Fuel tank capacity - Liters3122.96
Fuel tank capacity - Gal3
Fuel tank capacity - Gal825
Drive typeInboard
Drive typeInboard - Twin
Fuel typenot available
Fuel typeDiesel
Horsepowernot available
HorsepowerTwin 765 hp (588 kW)
Engine maxnot available
Engine maxTwin 1,051 hp (785 kW)
Operational Info
Water capacity100 gal. (378.5 l)
Water capacity200 gal. (757 l)
Holding tank capacity - Detail54 gal. (204.4 l)
Holding tank capacity - Detail70 gal. (265 l)
Holding tank capacity - Liters204.41
Holding tank capacity - Liters264.98
Holding tank capacity - Gal54
Holding tank capacity - Gal7
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeSemi Displacement