Overmarine Delivers Betsy, Its Fifth Mangusta GranSport 54

What is Betsy, and why does a fifth hull of the same yacht matter?

Betsy is the fifth Mangusta GranSport 54 Overmarine has built, delivered to her owner by early September 2026 and now cruising the Sardinian coast, and her arrival matters because a fifth repeat delivery is proof the model works as a production line rather than a one-off design exercise.

Overmarine launched Betsy from its Pisa shipyard in June 2026 and delivered her to her owner within weeks of the yacht's own transatlantic sea trials wrapping up, according to BOAT International and SuperYacht Times, both of which covered the launch. She is the fifth 54-metre GranSport hull the yard has completed since the line's 2020 debut, following Goldeneye, She's a 10 Too, Velocity and Re Leone. At just under 499 GT, 54 metres long and 9.01 metres in beam, Betsy carries the same aluminium hull and superstructure as her four sisterships, built to a hull form by naval architect Pierluigi Ausonio that Overmarine markets as a fast-displacement design rather than a pure planing hull.

For an owner comparing a production model like the GranSport 54 against a fully custom 54-metre build from a yard such as Feadship or Sanlorenzo, the calculation is different in kind, not just in price. A custom hull is unique and untested until her own sea trials; a fifth GranSport 54 arrives with four sisterships' worth of in-service history behind her, from Goldeneye's five years of ownership and eventual resale to She's a 10 Too's well-documented owner experience. That history is the actual product Overmarine is selling alongside the yacht itself, and it is the reason a repeat production line can command real confidence from a buyer who has never set foot on the specific hull being delivered.

Who designed and engineered the GranSport 54, and what does that buy an owner?

Every GranSport 54 hull, Betsy included, pairs Pierluigi Ausonio's naval architecture with Alberto Mancini's exterior and interior design and Overmarine's own engineering department, a fixed team across all five hulls rather than a new design brief each time.

Alberto Mancini has drawn both the exterior lines and the interior of every GranSport 54 built so far, giving the line a consistent look: a low-slung, glazed superstructure, a beach club with fold-down side hatches and opening transom door, and a contemporary, neutral interior palette that Overmarine's own material describes as designed to feel current across several years of production rather than dated by the second or third hull. Ausonio's naval architecture pushes the yacht to 29 knots at full speed on four MTU diesel engines, with a quoted cruising speed around 20 knots. Betsy accommodates up to ten guests across five staterooms, served by nine crew, figures that have stayed consistent since Goldeneye, the first hull, entered service in 2020.

The one place the yard's own numbers disagree is range. BOAT International's report on Betsy's delivery quotes a cruising range of 4,200 nautical miles at 12 knots; Overmarine's own yacht database entry and the figures reflected in third-party fleet listings give 3,800 nautical miles at the same 12-knot speed. Neither figure is independently verified by sea trial data made public, and the roughly 400-nautical-mile gap between the two is large enough that a buyer relying on range for an Atlantic or long Mediterranean-to-Caribbean passage should ask Overmarine directly for the figure that applies to Betsy's specific fuel load and trim, rather than take either published number as settled.

What does an owner of a GranSport 54 actually report about living aboard one?

The only detailed, on-the-record owner account of a GranSport 54 in service is Carolyn Aronson's of hull number three, She's a 10 Too, not Betsy herself, and it praises the deeper pool and the beach club's jet ski handling while admitting the yacht feels almost too showy to call a yacht at all.

Carolyn Aronson, the CEO of haircare and cosmetics company It's a 10, took delivery of hull number three, She's a 10 Too, and spoke to BOAT International about living aboard with her blended family of five children, aged three to twenty-three. She singled out the GranSport 54's deeper, larger pool compared with Overmarine's earlier GranSport models, the inflatable dock system that lets a jet ski be parked directly off the beach club, and the separate spaces the layout gives a large family spread across a wide age range. Her own verdict on the yacht itself, delivered with some irony: "I have trouble calling it a yacht. It feels a bit bougie."

Her captain, Mike Auer, offered a more operational read on the same beach club feature Betsy also carries: "We can just ride in and park the jet ski, it's great," he told BOAT International, describing the fold-down hatches and opening transom door as a genuine day-to-day convenience rather than a brochure feature. No comparable independent account exists yet for Betsy specifically, since she has been in her owner's hands only a matter of weeks; the She's a 10 Too reporting is the closest verified substitute, on the same hull design, same builder and same beach-club arrangement, but it describes hull three's owner and crew, not hull five's.

How has the GranSport 54 line actually held its value on resale?

The clearest resale data point on the line is Goldeneye, the second GranSport 54 hull, delivered in 2020 and sold through brokers this year at a last-asking price of EUR 32,000,000, with FGI Yacht Group representing the seller on that deal and now also handling Betsy's own charter listings.

Goldeneye, delivered in 2020 as the second hull in the series, changed hands through Simon Graham of FGI Yacht Group representing the seller and a team from Royal Yacht International representing the buyer, at a last disclosed asking price of EUR 32,000,000; the final agreed sale price was not made public, which is standard practice in superyacht brokerage. That FGI Yacht Group now also markets Betsy for charter is not a coincidence a buyer should ignore: it means the same brokerage has direct, current knowledge of demand for this specific 54-metre production line on both the sale and the charter side, which is a genuinely useful signal in a market where most yachts have no comparable sale on record at all.

A production line with five hulls and one recorded resale is still a thin data set next to a mass-market flybridge model with hundreds of hulls sold, but it is considerably deeper than the zero-comparable position a buyer faces with almost any fully bespoke 54-metre yacht. For an owner thinking about resale value on day one of ownership, as most superyacht buyers are advised to, the GranSport 54's five-hull run gives an actual reference price, even an imperfect and undisclosed one, where a custom build gives none.

What should a prospective buyer or charterer check before committing to a GranSport 54?

Before chartering or buying into the GranSport 54 line, a prospective owner should get Overmarine's confirmed range figure in writing for Betsy's actual configuration, ask FGI Yacht Group for a weekly charter rate rather than assuming one, and treat the 499 GT figure as a deliberate ceiling rather than an accident.

Overmarine keeps every GranSport 54 hull just under 500 GT, a threshold that in several flag states changes crewing certification requirements and tonnage-based fees; staying at 499 GT rather than pushing to 520 or 550 GT for more interior volume is a real trade-off the yard has made consistently across all five hulls, not a limitation forced on Betsy alone. No published weekly charter rate for Betsy was available at the time of writing; FGI Yacht Group's own listing offers the yacht for charter without a headline figure, which is common for a yacht in her first charter season and something a genuinely interested charterer should simply ask the brokerage for directly.

No independent sea trial report for any GranSport 54 hull, Betsy included, has been published by a third party; every performance and range figure in circulation, including the two disagreeing range numbers above, ultimately traces back to Overmarine's own data. That is not unusual for a yard of this size, but it means a buyer with a genuine passage-making requirement, rather than Mediterranean coastal cruising, should treat Overmarine's own range claims as a starting point for a direct conversation rather than a guaranteed number, in the same way any dealer-sheet performance figure deserves scrutiny before a contract is signed.