Detailed Evaluation & Buyer Recommendation
Princecraft SP 186 Platinum 2006 vs Princecraft Vantage 20 L 2007 — Same Brand, Different Boat
The Princecraft SP 186 Platinum 2006 vs Princecraft Vantage 20 L 2007 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 Princecraft SP 186 Platinum 2006 measures 18,0 feet overall (2006), giving it roughly 16,0 additional feet of deck space compared to the Princecraft Vantage 20 L 2007 at 2,0 feet (2007). Weight tells a clearer story for trailering families: the Princecraft Vantage 20 L 2007 tips the scales at 1 775 lbs — 1 636 lbs less than the Princecraft SP 186 Platinum 2006 at 139 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 175 hp, the Princecraft SP 186 Platinum 2006 has a 85-hp advantage over the Princecraft Vantage 20 L 2007's 90-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Princecraft Vantage 20 L 2007 carries 33 gallons versus 6 gallons in the Princecraft SP 186 Platinum 2006. 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 Princecraft SP 186 Platinum 2006 is rated for 8 passengers, while the Princecraft Vantage 20 L 2007 caps at 1. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Princecraft SP 186 Platinum 2006 could be the deciding factor.
At this size, power-to-weight ratio matters more than outright horsepower. The Princecraft SP 186 Platinum 2006 comes in at 1 lbs per hp versus 20 lbs per hp for the Princecraft Vantage 20 L 2007. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.
Bottom line: Choose the Princecraft SP 186 Platinum 2006 if your priority is putting more people on the water — it handles 8 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Princecraft Vantage 20 L 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 1 that costs less to run day-to-day.
General Boat Info
MakePrincecraft
MakePrincecraft
ModelSP 186 Platinum
ModelVantage 20 L
Model Year2006
Model Year2007
Measurements / Dimensions
Beam94 in. (2.4 m)
Beam8 ft. 6 in. (2.6 m)
Beam - Meters2.39
Beam - Meters2.59
Beam - Inches94
Beam - Inches102
Depth - Detail43 in. (1.1 m)
Depth - Detailnot available
Depth - Centimeters109.22
Depth - Centimetersnot available
Depth - Inches43
Depth - Inchesnot available
Draft [max] - Detail31 in. ((0.8 m)
Draft [max] - Detailnot available
Draft [max] - Meters0.79
Draft [max] - Metersnot available
Draft [max] - Inches31
Draft [max] - Inchesnot available
Weight - Detail1,390 lbs. (630 kg)
Weight - Detail1,775 lbs. (805 kg)
Weight - kg630.49
Weight - kg805.13
Weight - lbs.139
Weight - lbs.1775
Width [transom] - Detail76 im. (1.9 m)
Width [transom] - Detailnot available
Height [transom]20 in. (0.5 m)
Height [transom]not available
Length - Meters5.6
Length - Meters6.6
Length - Feet18
Length - Feet2
Length - Inches4
Length - Inches1
Length overall - Detail18 ft. 4 in. (5.6 m)
Length overall - Detail20 ft. 10 in. (6.6 m)
Length overall - Meters5.59
Length overall - Meters6.35
Length overall - Inches22
Length overall - Inches25
Length [deck]not available
Length [deck]20 ft. 0 in. (6.1 m)
Body / Hull
Hull thicknessBottom: .100 in. (2.5 mm) Side: .072 in. (1.8 mm)
Hull thicknessnot available
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typePontoon
Engine and Drivetrain
Fuel tank capacity - Detail60 gal. (227 l)
Fuel tank capacity - Detail33 gal. (125 l)
Fuel tank capacity - Liters227.12
Fuel tank capacity - Liters124.92
Fuel tank capacity - Gal6
Fuel tank capacity - Gal33
Drive typeOutboard
Drive typeOutboard
Engine max175 hp (131 kw)
Engine max90 hp (67 kW)
Operational Info
Maximum capacity1,784 lbs. (809 kg)
Maximum capacityPerson: 1,450 lbs. (658 kg) Total: 2,052 lbs. (931 kg)
Maximum people8
Maximum people1
Trailer Info
Trailer - DetailStandard Painted Bunk Style Trailer
Trailer - Detailnot available
Trailer - Weight571 lbs. (259 kg)
Trailer - Weightnot available
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter25 in. (0.64 m)
Tube gaugenot available
Tube gauge0.080 in. (2 mm)
Number of tubesnot available
Number of tubes2