Sanlorenzo unveils 58Steel featuring hybrid propulsion system

Italian Sanlorenzo has unveiled its new 58-metre superyacht 58Steel, a successor to the acclaimed Sanlorenzo 57Steel model
December 3 2025 3 minutes to read
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Sanlorenzo 58Steel can be fitted with a hybrid propulsion system

The steel displacement 58Steel was designed by Zuccon International Project and boasts an extended 10.8-metre beam, ensuring the volume comparable to that of 64-metre vessels

The first Sanlorenzo 58Steel christened Perla Lunar has already been delivered to her owner, and now construction is in progress on the second unit. 

Sanlorenzo 58Steel can be fitted with a hybrid propulsion system
Sanlorenzo 58Steel can be fitted with a hybrid propulsion system

The yacht’s architecture features a “floating terrace” at the stern, where there is a beach club opening on three sides.  There a bar, a hammam, a gym and a beauty salon here. The main deck is home to a pool with a see-through bottom, allowing for natural light to enter the lower level. The model’s bridge deck has been extended by one metre and redesigned to enhance functionality. 

The internal volume of the 58-metre Sanlorenzo 58 Steel is comparable to that of 64-metre vessels
The internal volume of the 58-metre Sanlorenzo 58 Steel is comparable to that of 64-metre vessels

This time the vessel’s interior was entrusted to the yard’s in-house Style Department. It features a combination of dark woods with Calacatta Borghini marble, mother-of-pearl and champagne-finished accents.

The 58Steel's aft section with a lounging area around the pool
The 58Steel's aft section with a lounging area around the pool

The entire upper deck has been dedicated to the owner, comprising a panoramic cabin, a spa bathroom, an office, a dressing room and a lounge that can transform into a cinema room. 

Sanlorenzo 58Steel's main saloon
Sanlorenzo 58Steel's main saloon

Among other guest rooms there are two VIP cabins below deck and the so-called Supreme VIP on the main deck. 

Sanlorenzo 58Steel's upper saloon
Sanlorenzo 58Steel's upper saloon

It the first yacht in the Steel series to feature a hybrid diesel-electric propulsion system. The system is based on five 425 kW generators and a 1 MWh capacity battery pack, ensuring up to two hours of silent cruising or up to eight hours of zero-emission hotel mode operation.

Sanlorenzo 58Steel's owner's suite on the upper deck
Sanlorenzo 58Steel's owner's suite on the upper deck

The solution reduces emissions by around 10% compared with conventional propulsion, while azimuthal pods with rotating propellers improve manoeuvrability and reduce vibration and noise. The smaller engine room has allowed for freeing up over 40 sq.m of usable space. 

Sanlorenzo 58Steel's beach club
Sanlorenzo 58Steel's beach club

At present, Sanlorenzo has 46 superyacht projects on order, including the flagship 74Steel, which hit the water in October 2025.

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