Prestige Yachts 420 S 2020 boat specs
Prestige
Prestige Yachts 420 S 2020
2020
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VS
Prestige Yachts 450 Fly Flybridge 2017 boat specs
Prestige
Prestige Yachts 450 Fly Flybridge 2017
2017
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Prestige Yachts 420 S 2020 vs Prestige Yachts 450 Fly Flybridge 2017 — Same Brand, Different Boat

The Prestige Yachts 420 S 2020 vs Prestige Yachts 450 Fly Flybridge 2017 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 Prestige Yachts 450 Fly Flybridge 2017 tops out at 435 hp. Engine specs for the Prestige Yachts 420 S 2020 aren't listed — confirm with a dealer before selecting an outboard.Fuel capacity breaks the other way: the Prestige Yachts 420 S 2020 carries 257 gallons versus 159 gallons in the Prestige Yachts 450 Fly Flybridge 2017. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 13 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

Bottom line: The Prestige Yachts 450 Fly Flybridge 2017 at 45,9 ft is the right call if deck space, comfort, and entertaining are top of your list. The Prestige Yachts 420 S 2020 at 42,9 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.
Measurements / Dimensions
Length overall - Detail42.85 ft
Length overall - Detail45.90 ft
Length - Feet42.85
Length - Feet45.9
Length overall - Meters13.06
Length overall - Meters13.99
Length overall - Inches514
Length overall - Inches551
Beam13.45 ft
Beam14.10 ft
Beam - Meters4.1
Beam - Meters4.3
Beam - Inches161
Beam - Inches169
Engine and Drivetrain
Fuel tank capacity - Gal257.3
Fuel tank capacity - Gal158.5
Fuel tank capacity - Liters973.99
Fuel tank capacity - Liters599.99
Engine makeCummins
Engine makeVOLVO PENTA
Drive typeinboard
Drive typeinboard
Engine 2 Engine MakeCummins
Engine 2 Engine MakeVOLVO PENTA
Engine 2 Drive Typeinboard
Engine 2 Drive Typeinboard
Horsepowernot available
Horsepower435 hp
Engine 2 Horsepowernot available
Engine 2 Horsepower435 hp
Performance
Maximum speed32
Maximum speed33
Maximum speed measureknots
Maximum speed measureknots
Cruising speednot available
Cruising speed24
Cruising speed measurenot available
Cruising speed measureknots
Operational Info
Water capacity93.26
Water capacity137
Boat typePower
Boat typePower

Prestige Yachts 420 S 2020 vs Prestige Yachts 450 Fly Flybridge 2017 — Common Questions

Which is the larger boat — the Prestige Yachts 420 S 2020 or the Prestige Yachts 450 Fly Flybridge 2017?
The Prestige Yachts 450 Fly Flybridge 2017 is the longer of the two at 45,9 feet overall. The Prestige Yachts 420 S 2020 comes in at 42,9 feet, making it roughly 3,1 ft shorter — a meaningful difference in deck room and overall on-water presence.
What is the maximum horsepower rating for these boats?
The Prestige Yachts 450 Fly Flybridge 2017 has a documented max rating of 435 hp. Engine specifications for the Prestige Yachts 420 S 2020 were not available in our database — check the OEM spec sheet or manufacturer's website for confirmation.
How many people can each boat hold?
The Prestige Yachts 420 S 2020 is Coast Guard rated for 13 passengers, while the Prestige Yachts 450 Fly Flybridge 2017 is certified for 13. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat is wider, and does it affect trailering?
The Prestige Yachts 450 Fly Flybridge 2017 measures 169" wide, compared to 161" for the Prestige Yachts 420 S 2020. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Which boat has the larger fuel tank — the Prestige Yachts 420 S 2020 or the Prestige Yachts 450 Fly Flybridge 2017?
The Prestige Yachts 420 S 2020 has the bigger tank at 257 gallons, versus 159 gallons on the Prestige Yachts 450 Fly Flybridge 2017. That 98-gallon difference translates to roughly 296–494 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Prestige Yachts 420 S 2020 and Prestige Yachts 450 Fly Flybridge 2017 from the same manufacturer?
Yes — both the Prestige Yachts 420 S 2020 and the Prestige Yachts 450 Fly Flybridge 2017 are built by Prestige. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.