Riviera 4800 Sport Yacht Platinum Edition 2023 boat specs
Riviera Yachts
Riviera 4800 Sport Yacht Platinum Edition 2023
2023
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Riviera Yachts 51 Open Flybridge SII 2012 boat specs
Riviera Yachts
Riviera Yachts 51 Open Flybridge SII 2012
2012
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Riviera 4800 Sport Yacht Platinum Edition 2023 vs Riviera Yachts 51 Open Flybridge SII 2012 — Same Brand, Different Boat

The Riviera 4800 Sport Yacht Platinum Edition 2023 vs Riviera Yachts 51 Open Flybridge SII 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 Riviera Yachts 51 Open Flybridge SII 2012 measures 58,2 feet overall (2012), giving it roughly 6,6 additional feet of deck space compared to the Riviera 4800 Sport Yacht Platinum Edition 2023 at 51,6 feet (2023). Weight tells a clearer story for trailering families: the Riviera 4800 Sport Yacht Platinum Edition 2023 tips the scales at 40 929 lbs — 36 123 lbs more than the Riviera Yachts 51 Open Flybridge SII 2012 at 4 806 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 825 hp, the Riviera Yachts 51 Open Flybridge SII 2012 has a 225-hp advantage over the Riviera 4800 Sport Yacht Platinum Edition 2023's 600-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Riviera Yachts 51 Open Flybridge SII 2012 carries 977 gallons versus 555 gallons in the Riviera 4800 Sport Yacht Platinum Edition 2023. 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 Riviera Yachts 51 Open Flybridge SII 2012 is rated for 16 passengers, while the Riviera 4800 Sport Yacht Platinum Edition 2023 caps at 15. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Riviera Yachts 51 Open Flybridge SII 2012 could be the deciding factor.

Bottom line: Choose the Riviera Yachts 51 Open Flybridge SII 2012 if your priority is putting more people on the water — it handles 16 passengers and at 58,2 ft it has the deck room to back that rating up comfortably. The Riviera 4800 Sport Yacht Platinum Edition 2023 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 15 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail51.60 ft
Length overall - Detail54 ft. 8 in. (16.67 m)
Length - Feet51.6
Length - Feet58.17
Length overall - Meters15.73
Length overall - Meters16.66
Length overall - Inches619
Length overall - Inches656
Beam15.10 ft
Beam16 ft. 2 in. (4.93 m) including gunwale
Beam - Meters4.6
Beam - Meters4.93
Beam - Inches181
Beam - Inches194
Draft [max] - Detail4.10 ft
Draft [max] - Detail4 ft. 6 in. (1.38 m) including props
Draft [max] - Meters1.25
Draft [max] - Meters1.37
Draft [max] - Inches49
Draft [max] - Inches54
Displacement40929.00 lbs
Displacementnot available
Weight - Detailnot available
Weight - Detail48,060 lbs. (21,800 kg)
Weight - kgnot available
Weight - kg21799.63
Weight - lbs.not available
Weight - lbs.4806
Length [over all with swim platform]not available
Length [over all with swim platform]58 ft. 2 in. (17.73 m)
Engine and Drivetrain
Fuel tank capacity - Gal555
Fuel tank capacity - Gal977
Fuel tank capacity - Liters2100.9
Fuel tank capacity - Liters3698.35
Engine makeVolvo Penta
Engine makenot available
Engine modelD8 IPS 8
Engine modelnot available
Horsepower600 hp
Horsepowernot available
Fuel typeDiesel
Fuel typeDiesel
Drive typeinboard
Drive typeInboard - Twin
Engine 2 Engine MakeVolvo Penta
Engine 2 Engine Makenot available
Engine 2 Engine ModelD8 IPS 8
Engine 2 Engine Modelnot available
Engine 2 Horsepower600 hp
Engine 2 Horsepowernot available
Engine 2 Fuel TypeDiesel
Engine 2 Fuel Typenot available
Engine 2 Drive Typeinboard
Engine 2 Drive Typenot available
Engine/s standardnot available
Engine/s standard(2) MTU
Fuel tank capacity - Detailnot available
Fuel tank capacity - Detail977 gal. (3,700 l)
Engine maxnot available
Engine max825 hp (615 kW) each
Operational Info
Sleeping capacity6
Sleeping capacity6-8
Cabins2
Cabinsnot available
Head2
Headnot available
Water capacity106
Water capacity227 gal. (860 l)
Holding tank capacity - Gal4
Holding tank capacity - Gal4
Holding tank capacity - Liters151.42
Holding tank capacity - Liters151.42
Boat typePower
Boat typenot available
Holding tank capacity - Detailnot available
Holding tank capacity - Detail40 gal. (151 l)
General Boat Info
Makenot available
MakeRiviera Yachts
Modelnot available
Model51 Open Flybridge SII
Model Yearnot available
Model Year2012
Body / Hull
Hull materialnot available
Hull materialFiberglass
Hull typenot available
Hull typeDeep Vee

Riviera 4800 Sport Yacht Platinum Edition 2023 vs Riviera Yachts 51 Open Flybridge SII 2012 — Common Questions

Which is the larger boat — the Riviera 4800 Sport Yacht Platinum Edition 2023 or the Riviera Yachts 51 Open Flybridge SII 2012?
The Riviera Yachts 51 Open Flybridge SII 2012 is the longer of the two at 58,2 feet overall. The Riviera 4800 Sport Yacht Platinum Edition 2023 comes in at 51,6 feet, making it roughly 6,6 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Riviera 4800 Sport Yacht Platinum Edition 2023 or the Riviera Yachts 51 Open Flybridge SII 2012?
For trailering, the Riviera Yachts 51 Open Flybridge SII 2012 has the edge at 4 806 lbs dry weight versus 40 929 lbs for the Riviera 4800 Sport Yacht Platinum Edition 2023. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
Which boat can handle a bigger outboard?
The Riviera Yachts 51 Open Flybridge SII 2012 is rated to a maximum of 825 hp, giving it the larger power ceiling. The Riviera 4800 Sport Yacht Platinum Edition 2023 tops out at 600 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Riviera 4800 Sport Yacht Platinum Edition 2023 is Coast Guard rated for 15 passengers, while the Riviera Yachts 51 Open Flybridge SII 2012 is certified for 16. 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 Riviera Yachts 51 Open Flybridge SII 2012 measures 194" wide, compared to 181" for the Riviera 4800 Sport Yacht Platinum Edition 2023. 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 Riviera 4800 Sport Yacht Platinum Edition 2023 or the Riviera Yachts 51 Open Flybridge SII 2012?
The Riviera Yachts 51 Open Flybridge SII 2012 has the bigger tank at 977 gallons, versus 555 gallons on the Riviera 4800 Sport Yacht Platinum Edition 2023. That 422-gallon difference translates to roughly 1266–2110 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Riviera 4800 Sport Yacht Platinum Edition 2023 and Riviera Yachts 51 Open Flybridge SII 2012 from the same manufacturer?
Yes — both the Riviera 4800 Sport Yacht Platinum Edition 2023 and the Riviera Yachts 51 Open Flybridge SII 2012 are built by Riviera Yachts. 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.