Riviera 4800 Sport Yacht Platinum Edition 2023 boat specs
Riviera Yachts
Riviera 4800 Sport Yacht Platinum Edition 2023
2023
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VS
Riviera 78 Motor Yacht 2021 boat specs
Riviera Yachts
Riviera 78 Motor Yacht 2021
2021
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Riviera 4800 Sport Yacht Platinum Edition 2023 vs Riviera 78 Motor Yacht 2021 — Same Brand, Different Boat

The Riviera 4800 Sport Yacht Platinum Edition 2023 vs Riviera 78 Motor Yacht 2021 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 78 Motor Yacht 2021 measures 81,5 feet overall (2021), giving it roughly 29,9 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 — 38 234 lbs more than the Riviera 78 Motor Yacht 2021 at 2 695 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 1 800 hp, the Riviera 78 Motor Yacht 2021 has a 1 200-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 78 Motor Yacht 2021 carries 2 695 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 78 Motor Yacht 2021 is rated for 24 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 78 Motor Yacht 2021 could be the deciding factor.

Bottom line: Choose the Riviera 78 Motor Yacht 2021 if your priority is putting more people on the water — it handles 24 passengers and at 81,5 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 - Detail81.50 ft
Length - Feet51.6
Length - Feet81.5
Length overall - Meters15.73
Length overall - Meters24.84
Length overall - Inches619
Length overall - Inches978
Beam15.10 ft
Beam19.80 ft
Beam - Meters4.6
Beam - Meters6.04
Beam - Inches181
Beam - Inches238
Draft [max] - Detail4.10 ft
Draft [max] - Detail6.30 ft
Draft [max] - Meters1.25
Draft [max] - Meters1.92
Draft [max] - Inches49
Draft [max] - Inches76
Displacement40929.00 lbs
Displacement2695.00 lbs
Engine and Drivetrain
Fuel tank capacity - Gal555
Fuel tank capacity - Gal2695
Fuel tank capacity - Liters2100.9
Fuel tank capacity - Liters10201.68
Engine makeVolvo Penta
Engine makeMAN
Engine modelD8 IPS 8
Engine modelV12 Shaft Drive
Horsepower600 hp
Horsepower1800 hp
Fuel typeDiesel
Fuel typeDiesel
Drive typeinboard
Drive typeinboard
Engine 2 Engine MakeVolvo Penta
Engine 2 Engine MakeMAN
Engine 2 Engine ModelD8 IPS 8
Engine 2 Engine ModelV12 Shaft Drive
Engine 2 Horsepower600 hp
Engine 2 Horsepower1800 hp
Engine 2 Fuel TypeDiesel
Engine 2 Fuel TypeDiesel
Engine 2 Drive Typeinboard
Engine 2 Drive Typeinboard
Operational Info
Sleeping capacity6
Sleeping capacity8
Cabins2
Cabins4
Head2
Head4
Water capacity106
Water capacity211
Holding tank capacity - Gal4
Holding tank capacity - Gal132
Holding tank capacity - Liters151.42
Holding tank capacity - Liters499.67
Boat typePower
Boat typePower

Riviera 4800 Sport Yacht Platinum Edition 2023 vs Riviera 78 Motor Yacht 2021 — Common Questions

Which is the larger boat — the Riviera 4800 Sport Yacht Platinum Edition 2023 or the Riviera 78 Motor Yacht 2021?
The Riviera 78 Motor Yacht 2021 is the longer of the two at 81,5 feet overall. The Riviera 4800 Sport Yacht Platinum Edition 2023 comes in at 51,6 feet, making it roughly 29,9 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 78 Motor Yacht 2021?
For trailering, the Riviera 78 Motor Yacht 2021 has the edge at 2 695 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 78 Motor Yacht 2021 is rated to a maximum of 1 800 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 78 Motor Yacht 2021 is certified for 24. 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 78 Motor Yacht 2021 measures 238" 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 78 Motor Yacht 2021?
The Riviera 78 Motor Yacht 2021 has the bigger tank at 2 695 gallons, versus 555 gallons on the Riviera 4800 Sport Yacht Platinum Edition 2023. That 2140-gallon difference translates to roughly 6420–10700 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 78 Motor Yacht 2021 from the same manufacturer?
Yes — both the Riviera 4800 Sport Yacht Platinum Edition 2023 and the Riviera 78 Motor Yacht 2021 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.