Sanlorenzo Yachts SD90 2023 boat specs
Sanlorenzo Yachts
Sanlorenzo Yachts SD90 2023
2023
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Sanlorenzo Yachts SL120 Asymmetric 2021 boat specs
Sanlorenzo Yachts
Sanlorenzo Yachts SL120 Asymmetric 2021
2021
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Sanlorenzo Yachts SD90 2023 vs Sanlorenzo Yachts SL120 Asymmetric 2021 — Same Brand, Different Boat

The Sanlorenzo Yachts SD90 2023 vs Sanlorenzo Yachts SL120 Asymmetric 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 Sanlorenzo Yachts SL120 Asymmetric 2021 measures 121,0 feet overall (2021), giving it roughly 29,1 additional feet of deck space compared to the Sanlorenzo Yachts SD90 2023 at 91,9 feet (2023). Weight tells a clearer story for trailering families: the Sanlorenzo Yachts SL120 Asymmetric 2021 tips the scales at 385 809 lbs — 154 324 lbs less than the Sanlorenzo Yachts SD90 2023 at 231 485 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 2 000 hp, the Sanlorenzo Yachts SL120 Asymmetric 2021 has a 800-hp advantage over the Sanlorenzo Yachts SD90 2023's 1 200-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load. Fuel capacity breaks the other way: the Sanlorenzo Yachts SL120 Asymmetric 2021 carries 3 619 gallons versus 3 434 gallons in the Sanlorenzo Yachts SD90 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 Sanlorenzo Yachts SL120 Asymmetric 2021 is rated for 36 passengers, while the Sanlorenzo Yachts SD90 2023 caps at 28. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sanlorenzo Yachts SL120 Asymmetric 2021 could be the deciding factor.

Bottom line: Choose the Sanlorenzo Yachts SL120 Asymmetric 2021 if your priority is putting more people on the water — it handles 36 passengers and at 121,0 ft it has the deck room to back that rating up comfortably. The Sanlorenzo Yachts SD90 2023 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 28 that costs less to run day-to-day.
Measurements / Dimensions
Length overall - Detail91.90 ft
Length overall - Detail121.00 ft
Length - Feet91.9
Length - Feet121
Length overall - Meters28.01
Length overall - Meters36.88
Length overall - Inches1103
Length overall - Inches1452
Beam23.00 ft
Beam24.11 ft
Beam - Meters7.01
Beam - Meters7.35
Beam - Inches276
Beam - Inches289
Draft [max] - Detail6.10 ft
Draft [max] - Detail7.50 ft
Draft [max] - Meters1.86
Draft [max] - Meters2.29
Draft [max] - Inches73
Draft [max] - Inches90
Displacement231485.00 lbs
Displacement385809.00 lbs
Engine and Drivetrain
Fuel tank capacity - Gal3434
Fuel tank capacity - Gal3619
Fuel tank capacity - Liters12999.1
Fuel tank capacity - Liters13699.4
Engine makeMAN
Engine makeMTU
Engine modelV8
Engine model16V 2000 M96L
Horsepower1200 hp
Horsepower2000 hp
Fuel typeDiesel
Fuel typeDiesel
Drive typeinboard
Drive typeinboard
Engine 2 Engine MakeMAN
Engine 2 Engine MakeMTU
Engine 2 Engine ModelV8
Engine 2 Engine Model16V 2000 M96L
Engine 2 Horsepower1200 hp
Engine 2 Horsepower2000 hp
Engine 2 Fuel TypeDiesel
Engine 2 Fuel TypeDiesel
Engine 2 Drive Typeinboard
Engine 2 Drive Typeinboard
Performance
Cruising speed15
Cruising speed23
Cruising speed measureknots
Cruising speed measureknots
Maximum speed17
Maximum speed27
Maximum speed measureknots
Maximum speed measureknots
Operational Info
Sleeping capacity1
Sleeping capacity1
Cabins4
Cabins5
Head5
Head5
Water capacity528
Water capacity1109
Boat typePower
Boat typePower

Sanlorenzo Yachts SD90 2023 vs Sanlorenzo Yachts SL120 Asymmetric 2021 — Common Questions

Which is the larger boat — the Sanlorenzo Yachts SD90 2023 or the Sanlorenzo Yachts SL120 Asymmetric 2021?
The Sanlorenzo Yachts SL120 Asymmetric 2021 is the longer of the two at 121,0 feet overall. The Sanlorenzo Yachts SD90 2023 comes in at 91,9 feet, making it roughly 29,1 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sanlorenzo Yachts SD90 2023 or the Sanlorenzo Yachts SL120 Asymmetric 2021?
For trailering, the Sanlorenzo Yachts SD90 2023 has the edge at 231 485 lbs dry weight versus 385 809 lbs for the Sanlorenzo Yachts SL120 Asymmetric 2021. 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 Sanlorenzo Yachts SL120 Asymmetric 2021 is rated to a maximum of 2 000 hp, giving it the larger power ceiling. The Sanlorenzo Yachts SD90 2023 tops out at 1 200 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 Sanlorenzo Yachts SD90 2023 is Coast Guard rated for 28 passengers, while the Sanlorenzo Yachts SL120 Asymmetric 2021 is certified for 36. 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 Sanlorenzo Yachts SL120 Asymmetric 2021 measures 289" wide, compared to 276" for the Sanlorenzo Yachts SD90 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 Sanlorenzo Yachts SD90 2023 or the Sanlorenzo Yachts SL120 Asymmetric 2021?
The Sanlorenzo Yachts SL120 Asymmetric 2021 has the bigger tank at 3 619 gallons, versus 3 434 gallons on the Sanlorenzo Yachts SD90 2023. That 185-gallon difference translates to roughly 555–925 nautical miles of additional range at cruising speed, depending on motor, load, and conditions.
Are the Sanlorenzo Yachts SD90 2023 and Sanlorenzo Yachts SL120 Asymmetric 2021 from the same manufacturer?
Yes — both the Sanlorenzo Yachts SD90 2023 and the Sanlorenzo Yachts SL120 Asymmetric 2021 are built by Sanlorenzo 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.