Detailed Evaluation & Buyer Recommendation
Grady-White Advance 257 2007 vs Grady-White Canyon 366 2009 — Same Brand, Different Boat
The Grady-White Advance 257 2007 vs Grady-White Canyon 366 2009 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.
The power gap is worth calling out. Rated to 1 050 hp, the Grady-White Canyon 366 2009 has a 700-hp advantage over the Grady-White Advance 257 2007's 350-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Grady-White Advance 257 2007 carries 151 gallons versus 42 gallons in the Grady-White Canyon 366 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 Grady-White Canyon 366 2009 is rated for 11 passengers, while the Grady-White Advance 257 2007 caps at 7. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Grady-White Canyon 366 2009 could be the deciding factor.
Bottom line: Choose the Grady-White Canyon 366 2009 if your priority is putting more people on the water — it handles 11 passengers and at 36,6 ft it has the deck room to back that rating up comfortably. The Grady-White Advance 257 2007 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
MakeGrady-White
MakeGrady-White
ModelAdvance 257
ModelCanyon 366
Model Year2007
Model Year2009
Measurements / Dimensions
Beam8 ft. 6 in
Beam13 ft. 2 in. (4.01 m)
Beam - Meters2.59
Beam - Meters4.01
Beam - Inches102
Beam - Inches158
Bridge clearance - Detail7 ft. (with T-top 8 ft. 5 in.)
Bridge clearance - Detail9 ft. (2.74 m) with T-top
Bridge clearance - Meters2.57
Bridge clearance - Meters2.74
Bridge clearance - Inches101
Bridge clearance - Inches108
Deadrise20℃ with SeaV℃ hull (continuously variable vee)
Deadrisenot available
Draft [max] - Detail16 in
Draft [max] - DetailHull: 29 in. (0.74 m)
Draft [max] - Meters0.41
Draft [max] - Meters0.74
Draft [max] - Inches16
Draft [max] - Inches29
Weight - Detail4,045 lbs
Weight - DetailWithout Engines: TBD
Weight - kg1834.78
Weight - kgnot available
Weight - lbs.4045
Weight - lbs.not available
Width [transom] - Detail7 ft. 10 in
Width [transom] - Detail11 ft. 4 in. (3.45 m)
Length - Feet24
Length - Feet36.58
Length - Inches9
Length - Inchesnot available
Length overall - Detail24 ft. 9 in
Length overall - Detail36 ft. 7 in. (11.15 m)
Length overall - Meters7.54
Length overall - Meters11.15
Length overall - Inches297
Length overall - Inches439
Depth - Detailnot available
Depth - DetailCockpit: 28 in. (0.71 m)
Depth - Centimetersnot available
Depth - Centimeters71.12
Depth - Inchesnot available
Depth - Inches28
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail151 gal
Fuel tank capacity - Detail420 gal. (1,590 l)
Fuel tank capacity - Liters571.6
Fuel tank capacity - Liters1589.87
Fuel tank capacity - Gal151
Fuel tank capacity - Gal42
Drive typeOutboard
Drive typeOutboard - Twin
Engine max350 hp
Engine max1,050 hp (783 kW)
Operational Info
Water capacitynot available
Water capacity65 gal. (246.1 l)