Detailed Evaluation & Buyer Recommendation
Sea Ray 40 Motor Yacht 2007 vs Sea Ray 580 Sundancer 2012 — Same Brand, Different Boat
The Sea Ray 40 Motor Yacht 2007 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 40 Motor Yacht 2007 measures 41,0 feet overall (2007), 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 40 Motor Yacht 2007 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 power gap is worth calling out. Rated to 1 051 hp, the Sea Ray 580 Sundancer 2012 has a 644-hp advantage over the Sea Ray 40 Motor Yacht 2007's 407-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sea Ray 580 Sundancer 2012 carries 825 gallons versus 3 gallons in the Sea Ray 40 Motor Yacht 2007. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
The Sea Ray 40 Motor Yacht 2007 is rated for up to 12 people. Passenger data for the Sea Ray 580 Sundancer 2012 wasn't available.
Bottom line: The Sea Ray 40 Motor Yacht 2007 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
Model40 Motor Yacht
Model580 Sundancer?
Model Year2007
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)
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typenot available
Hull typeSemi Displacement
Engine and Drivetrain
Engine/s standardT-8.1 S Horizon MerCruiser? 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
Fuel typeGas or Diesel
Fuel typeDiesel
Drive typeInboard - Twin
Drive typeInboard - Twin
Engine maxT-407 hp (304 kW)
Engine maxTwin 1,051 hp (785 kW)
Horsepowernot available
HorsepowerTwin 765 hp (588 kW)
Operational Info
HeadVacuFlush?
Headnot available
Water capacity100 gal. (378.5 l)
Water capacity200 gal. (757 l)
Water heater capacity11 gal. (41.6 l)
Water heater capacitynot available
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