Sanlorenzo SL120 Asymmetric
- LOA: 36.9 m
- Beam: 7.6 m
- Accommodation: 10 guests, 6 crew
- Engines: twin MTU 16V2000 M96L, about 2,637 hp
- Top speed: about 27 knots
- Position: flagship of the SL Asymmetric planing range, launched 2021
- Layout: single side deck, full-beam main-deck volume
- Design: exterior by Zuccon International Project
Flagship of the SL line
The SL120 Asymmetric tops the planing SL range, the largest and most powerful boat to carry the single-side-deck layout. At 36.9 metres it delivers volume that owners usually associate with metal superyachts, yet it keeps the fast composite hull that defines the SL family. It was first shown in 2021, giving the range a true flagship. Above it, buyers move into the semi-displacement SD line or the metal Superyacht Division.
Built to individual order in composite by the Yacht Division, each SL120 reflects its owner's brief. Its role is to be the SL for those who want the most space and presence the planing range offers. It answers the demand for superyacht scale delivered at speed.
Presence and light
Zuccon International Project drew the exterior, stretching the low SL profile over a long, commanding hull. The port side deck is removed, letting the main-deck saloon reach the fuller beam and bringing the glazing down close to the water. The scale gives the designers room for large, connected deck spaces above and aft. Owners can specify the flybridge open or under a hardtop to suit their waters.
A generous foredeck and a broad aft cockpit make room for real gatherings at anchor, and a beach area at the stern opens life to the sea. The proportions stay elegant despite the length. The boat carries genuine presence at the dock. Daylight across a full-beam main deck is the SL120's headline quality.
The SL120 is the asymmetric layout at flagship scale, superyacht volume that still runs at 27 knots.
Superyacht space
Inside, the SL120 sleeps ten guests and carries a crew of six, numbers that reflect its superyacht volume. The width freed by the asymmetric plan is spent on a large main saloon and a full-beam owner's suite, both of which feel expansive. Interiors follow the calm, material-led language of Piero Lissoni's direction, with natural finishes and long sight lines. Owners tailor the arrangement and finish closely.
The larger hull allows clear separation between owner, guest and crew areas, so the boat works well for longer stays and bigger groups. The main deck stays the social heart, opening to the cockpit and the view. Below, the guest cabins gain room and light from the extra beam, and the owner's suite runs the full width of the boat. It is a yacht built for extended time aboard in comfort. The sense of volume inside is what marks it as the flagship.
Power to match
The SL120 is driven by twin MTU 16V2000 M96L engines of around 2,637 hp, giving the flagship a reported top speed of about 27 knots. That is remarkable pace for a boat of this volume, and it lets an owner cross open water quickly when conditions allow. At a relaxed cruise the yacht settles into an efficient gait for longer passages. It drives like a large sports flybridge.
The underwater hull stays symmetrical, so the asymmetric deck plan costs nothing in handling or sea-keeping. Sanlorenzo keeps the engineering proven and serviceable at this scale. The result is a flagship built for capable, confident use over long seasons. Speed and volume sit together here without compromise.
Who the SL120 suits
The SL120 Asymmetric suits the owner who wants the largest, most imposing boat in the planing range while keeping real pace. It is well matched to longer cruising, larger groups and the wish for superyacht presence without moving to metal construction. As the flagship it also carries a certain status within the Sanlorenzo world. For a buyer at the top of the composite range, it is the natural summit.
Against rival flybridge and sports yachts in the mid-thirties, its case is the asymmetric main deck delivered at flagship scale and speed. For a long-standing Sanlorenzo owner, it is the fullest SL they can buy before moving to the SD line or the metal Superyacht Division. It rewards those who refuse to trade volume for pace.
Who it is for: An owner who wants the biggest, most commanding planing SL without giving up sports-yacht speed.