Built smarter. Boated better.
The Granfort 370 GTX combines Porsche Consulting-advised production processes, ABYC and U.S. Coast Guard compliance, Divinycell foam core construction, and a wide, open layout designed to feel lighter, run farther, stay steadier, and bring everyone closer to the water.
Both boats cost roughly the same. Only one of them was built to a production standard that earns it.
The Granfort 370 GTX and the NX 370 HT are priced within reach of each other. At that level of investment, the question is not which boat you can afford — it is which boat gives you more for what you spend.
The Granfort answers that question clearly. It is 10 inches wider, which means less rocking at anchor and a noticeably steadier platform for everyone on board. It weighs significantly less, which translates directly into sharper throttle response, more agile handling, and better navigation performance in every condition you will actually encounter. It carries 63 more gallons of fuel. Its hull is built with Divinycell closed-cell foam core construction — the same category of material used in aerospace and premium performance marine applications. It is backed by a 10-year structural warranty covering hull and deck, built to meet ABYC and U.S. Coast Guard standards, and produced by a shipyard whose operational processes have been advised by Porsche Consulting for more than 10 years.
For roughly the same purchase price, that is not a marginal difference. That is a fundamentally better ownership proposition.
The value case: at comparable asking prices — Granfort at $546,800 fully equipped, NX listed at $499,900 to $535,000 — the Granfort gives you a wider beam, less roll, lighter and more responsive hull, more fuel range, superior construction technology, and a broader structural warranty. That is a meaningful difference at any price point. At this one, it is the decision.
The quality of Granfort's construction is noticeable the moment you step aboard.
In the U.S. market, the brands with the highest reputation share one thing: their build quality is immediately apparent. You feel it in the surfaces, the fit of panels, the weight of hardware, the way hatches close, the finish of the fiberglass. It does not require inspection — it registers in the first thirty seconds on board.
Granfort's fiberglass construction quality delivers that same immediate impression. The laminate finish is consistent and deeply polished. Panel gaps are tight and uniform. Hardware is substantial. The gelcoat has the visual depth and surface quality that distinguishes boats built with serious production discipline from those that are simply assembled to a price point.
The first 30 seconds test: step aboard and stop thinking analytically. Premium construction quality registers immediately — in the surfaces, the hardware, the finish, and the way the boat sits in the water. Granfort passes that test the way the highest-reputation American brands do.
Same engine ceiling. Nearly 6,000 lb less to move.
Both boats carry twin 400 hp outboards — 800 hp total. Same power ceiling. But the Granfort 370 GTX weighs 13,500 lb loaded against the NX's approximately 19,400 lb. That is nearly 6,000 lb less for the same horsepower to move.
In practical terms, that gap shows up everywhere: faster hole shot, sharper throttle response, more precise handling at speed, better tracking in a chop, and measurably lower fuel burn per hour. Navigation performance — how the boat feels and responds in real conditions, not just at wide-open throttle — is dramatically better in the lighter hull. You feel it the first time you trim out of a no-wake zone and again every time you make a course correction offshore.
A 50 mph top speed is the headline. The everyday handling advantage of a 6,000 lb weight difference is the experience.
The hardtop coupe identity is real. It just does not carry the rest of the decision.
This comparison is only credible if it is honest. The NX 370 HT has a clear, confident identity: protected cockpit, hardtop coupe profile, enclosed social environment, and strong technology positioning. For a buyer whose top priority is shade, shelter, and a lounge-style boating experience, NX makes a genuine case.
NX also lists 66 gallons of freshwater capacity and 16 day passengers — both real advantages in certain use cases. If protected comfort is the priority, those numbers matter.
But the comparison does not stop at the hardtop. When the full picture comes into view — loaded weight, fuel capacity, beam, performance, warranty breadth, compliance documentation, construction technology, and production credibility — the Granfort accumulates a compounding advantage that is hard to set aside.
When you compare every category, Granfort wins more of the ones that define long-term ownership.
The NX 370 HT wins on hardtop identity, freshwater capacity, and day-passenger count — legitimate advantages for the right buyer. But across loaded weight, fuel capacity, beam, top speed, construction technology, warranty language, compliance documentation, and production credibility, the Granfort 370 GTX builds a case that becomes progressively harder to argue against.
| Category | Granfort 370 GTX | NX 370 HT Sport Coupe | The significance |
|---|---|---|---|
| Boat philosophy | Open luxury express cruiser | Hardtop sport coupe | Granfort is built for the run — openness, performance, and connection. NX is built around protection and coupe presence. |
| Advertised price (fully equipped) | $546,800 fully equipped | $499,900 – $535,000 | Within the same price band, Granfort delivers a wider beam, lighter hull, more fuel, stronger warranty, Divinycell construction, and Porsche Consulting-advised production quality. |
| Overall length | 37 ft | 38 ft 2 in (with outboards) | NX is longer with outboards, supporting its larger hardtop profile. |
| Beam | 11 ft 6 in | 10 ft 8 in | Granfort is 10 inches wider — one of the most direct ways to reduce rolling. A wider beam means a steadier platform at anchor, at idle, and in beam seas. |
| Stability at rest & underway | Wider beam reduces roll significantly | Narrower beam increases tendency to rock | A wider beam is one of the most effective ways to reduce rocking. Granfort's 11 ft 6 in beam gives guests a noticeably steadier platform at anchor, at low speed, and in beam seas. |
| Loaded weight | 13,500 lb | ~19,400 lb | Nearly 6,000 lb lighter loaded. This directly improves throttle response, handling agility, navigation performance in chop, and fuel consumption every hour you run it. |
| Hull construction | Divinycell closed-cell foam core sandwich | Fiberglass monohull | Divinycell delivers a higher strength-to-weight ratio, closed-cell water resistance, and superior structural stiffness per pound. |
| Fuel capacity | 222 gal (2 × 111 gal tanks) | 159 gal | Granfort carries 63 more gallons — in a significantly lighter hull. That is the range equation, not just the fill-up cost. |
| Freshwater capacity | 38 gal | 66 gal | NX has a genuine advantage for buyers prioritizing extended freshwater availability. |
| Passenger capacity | 14 day / 4 overnight | 16 day / 4 overnight | NX lists two more day passengers. Overnight capacity is equivalent. |
| Max power | 2 × 400 hp (800 hp total) | 2 × 400 hp (800 hp total) | Same ceiling — but Granfort moves nearly 6,000 lb less with the same power. |
| Published top speed | 50 mph | Lower published reference | Granfort publishes a stronger performance number — and the weight and construction story explains why. |
| Structural warranty | 10-year structural hull + deck warranty | 10-year hull warranty reference | Granfort covers hull and deck. The deck is load-bearing — this is not a minor distinction. |
| U.S. compliance | ABYC + U.S. Coast Guard compliant | Not published with equivalent clarity | For buyers, lenders, insurers, and marinas, clear compliance documentation matters before and after purchase. |
| Production credibility | Porsche Consulting-advised — 10+ years, publicly documented by Porsche Newsroom | Technology, design, and customization positioning | NX's story is design and style. Granfort's story is process, compliance, performance, and warranty — independently documented. |
| Builder heritage | Fibrafort — Brazil's top-of-mind boatbuilder, highest resale value in market | NX Boats | Fibrafort is the resale value benchmark in Brazilian boating. Granfort brings that production heritage to American buyers. |
Good reviewers describe both boats accurately. The ownership priorities still resolve in Granfort's favor.
A hardtop identity built around style and shelter
NX positions the 370 HT around technology, quality, innovation, sophistication, and sporty design. Its hardtop coupe profile is the product's defining characteristic.
Stylish, well-finished, and socially focused
BoatTEST describes the NX 370 HT Sport as a mid-size cruiser with spirited performance, an eye-catching profile, fine fit and finish, practical amenities, and extensive customization options.
Open-air performance with coastal cruising capability
Granfort presents the 370 GTX as a 37-foot outboard express cruiser where style meets performance — open cockpit, full bow, 360-degree pilot view, and genuine overnight comfort.
Dayboat freedom with the depth of a coastal cruiser
BoatTEST describes the Granfort 370 GTX as combining sleek design, performance, outboard convenience, shallow-water usability, and the kind of ownership experience that translates into meaningful time on the water.
A hardtop separates you from the water. The Granfort puts you back in it.
This is the emotional center of the comparison. NX gives the buyer an enclosed, protected, hardtop environment. For certain owners, that is precisely the right trade.
Granfort makes the opposite choice. The 370 GTX keeps the cockpit, bow, helm, and stern open and connected. Airflow. Visibility. Movement across the boat. The feeling of being on the water rather than looking out at it through a hardtop.
For buyers who board a boat to feel the day — not just observe it — Granfort's open layout is not a compromise. It is the point.
NX trades openness for enclosure. That is the honest description of both choices.
The NX 370 HT creates a structured lounge environment under the hardtop. For entertaining guests who want shade and a sense of enclosure, it is a polished, well-considered design — a fair description of what the boat is built to do.
Granfort resolves that trade differently. The 370 GTX does not attempt to become a room on the water. It stays a boat — open, fluid, and built around movement, flow, and the experience of actually running. That is its strength, and for the right owner, it is exactly what they want.
A premium boat needs to impress you before the sale and protect you every year after it.
Warranty, compliance, and post-purchase confidence are not exciting topics — until something unexpected happens, or until you try to insure, finance, or sell the boat. Then they become the most important part of the decision.
Granfort's 10-year structural warranty covers hull and deck. That language matters. The deck is not decorative — it is a load-bearing structural component. Warranty coverage that extends to the deck tells a different story than hull-only language.
For the U.S. market, Granfort boats are built to meet ABYC and U.S. Coast Guard standards. That matters to buyers, marinas, dealers, lenders, insurers, and anyone involved in the long-term lifecycle of the boat.
The ownership equation: the excitement of a beautiful boat fades. Warranty confidence, compliance documentation, production discipline, and resale credibility do not. The Granfort 370 GTX — built by Fibrafort with Porsche Consulting-advised processes — was designed with all of that in mind from the beginning.
One boat shelters the experience. The other lets the experience breathe.
NX's hardtop layout creates a protected social environment that feels organized and shielded. For buyers who want a defined, enclosed gathering space on the water, that is a real advantage.
The Granfort's social strength works differently. The 11 ft 6 in beam, open cockpit, full bow, and connected stern layout create flow. Guests move freely, stay connected to the view, and feel part of the water rather than separated from it by the boat's architecture.
And that wider beam does something else that matters just as much as layout: it keeps the boat stable. A wider beam is one of the most direct ways to reduce rolling — at anchor, at idle, in a chop. Guests on the Granfort feel a steadier platform, which changes how comfortable the whole experience is, whether you are entertaining at the sandbar or running offshore. It is a difference that is immediately noticeable, and one that does not appear on a spec sheet but registers every time you are on board.
Neither boat is wrong for the right buyer. But one of them will match how you actually boat — and that is the only comparison that ultimately matters.
Built by Fibrafort — Brazil's top-of-mind boatbuilder with the highest resale value in its market.
Granfort brings a new standard of luxury express cruisers to America — combining Brazilian boatbuilding craftsmanship with production and operational processes advised by Porsche Consulting, compliance with ABYC and U.S. Coast Guard standards, and the confidence of a 10-year structural warranty.
Fibrafort has been building boats in Brazil for decades. In Brazil, it is not simply one of many brands — it is the top-of-mind boatbuilder with the highest resale value in the market. That is the benchmark position: the name buyers compare everything else against. For the U.S. market, Granfort is Fibrafort's premium export line, engineered to meet American buyer expectations at every level of the ownership experience.
Granfort boats are built to meet ABYC and U.S. Coast Guard standards, backed by a 10-year structural warranty covering hull and deck, and supported by Porsche Consulting-advised production processes that are publicly documented and independently confirmed.
In Brazil, Fibrafort is the reference point. Highest resale value, top-of-mind awareness, and decades of production heritage. Granfort brings that standard to American waters — with U.S. compliance documentation and a structural warranty that most boats in this class cannot match.
What Porsche publicly confirms about Fibrafort's operational transformation.
This is not a marketing claim. Porsche Newsroom and the Granfort/Fibrafort brand pages publicly document a partnership that began with a single project and then expanded across the company's entire operating model — with measurable, reported results and more than 10 years of active engagement.
According to Porsche Newsroom, Fibrafort began working with Porsche Consulting after an initial project to optimize development processes. The scope then expanded to cover production, logistics, material and cost planning, purchasing, and storage processes across company divisions. Porsche Newsroom also confirmed that Fibrafort was moving toward more automated and faster processes while further enhancing quality at every stage of production.
The Granfort/Fibrafort brand materials describe this as a partnership focused on improving industrial processes and product quality at every stage — and confirm that it has now extended to more than 10 years of active collaboration. This was not a brand-level endorsement. It was a documented operational engagement that touched Fibrafort's entire production and supply chain system.
The scope of the partnership: production, development, logistics, material and cost planning, purchasing, and storage — all confirmed by Porsche Newsroom. More than 10 years of active engagement. For a buyer, that level of documented production discipline is rare in any boat category at any price point.
| Porsche-confirmed area | Reported result | What it means for the buyer |
|---|---|---|
| Material cost control | Reduced by 10% | Stronger industrial discipline and process control behind the product. |
| Extra daily parts orders | Reduced by 90% | Better planning means fewer interruptions and a more organized build sequence. |
| Reject rate | 28 items reduced to 19 | A measurable quality improvement — confirmed by Porsche Newsroom, not claimed by marketing. |
| Overtime | Reduced by 48% | A controlled production system reduces pressure and supports consistent output. |
| Partnership duration | More than 10 years active | An ongoing operational relationship — not a one-time engagement. |
| Scope of engagement | Production, logistics, development, purchasing, storage, cost planning | This touched Fibrafort's entire operating model — confirmed by Porsche Newsroom. |
Granfort uses Divinycell foam core construction — a material that changes the weight, performance, and durability equation.
Divinycell is a high-performance, closed-cell PVC structural foam core used in aerospace, defense, and premium boat construction. Sandwiched between two fiberglass skins, it dramatically increases hull stiffness, reduces weight, and improves every performance characteristic — without compromising structural integrity.
In practical terms, this is the technology behind the Granfort 370 GTX's 13,500 lb loaded weight. The boat is not simply lighter because the design team chose to build it smaller. It is lighter because Divinycell foam core construction is fundamentally more efficient than solid fiberglass laminate — delivering more rigidity per pound, resisting water absorption across years of saltwater exposure, and giving the boat a structural stiffness that benefits everything from handling to longevity.
Why this matters in context: the Granfort 370 GTX's 13,500 lb loaded weight vs the NX 370 HT's ~19,400 lb loaded weight is not just a specification difference. It is the direct result of building with more sophisticated materials — and it changes how the boat performs, how efficiently it burns fuel, and how it feels every time you open the throttle.
Stop choosing the boat that photographs best. Choose the boat that fits how you actually use it.
The NX 370 HT is the right choice if:
- A hardtop coupe profile is your primary and non-negotiable requirement
- You want a protected cockpit and a more enclosed, lounge-style boating environment
- Higher freshwater capacity (66 gal) and 16-day-passenger capacity are the deciding factors
- You value shade and shelter over openness, airflow, and connection to the water
- The enclosed room-on-the-water feeling is what motivates you
The Granfort 370 GTX is the right choice if:
- You want the lighter, faster platform — 50 mph at 13,500 lb loaded vs ~19,400 lb
- You want 222 gallons of fuel in a Divinycell foam core hull that does not absorb water
- An 11 ft 6 in beam, open cockpit, and genuine connection to the water define your boating
- ABYC and U.S. Coast Guard compliance matters for your peace of mind and resale confidence
- A 10-year structural warranty covering both hull and deck is part of the confidence you expect
- Porsche Consulting-advised production processes — 10+ years and publicly documented — are a meaningful differentiator
- You want a boat built by Fibrafort, Brazil's top-of-mind brand with the highest resale value in its market
NX wins the hardtop conversation. Granfort wins everything that comes after it.
The NX 370 HT is a serious, well-designed boat. Its hardtop identity, protected social environment, and customization story give it genuine appeal for a specific buyer — and that buyer should consider it seriously.
The Granfort 370 GTX makes a case that compounds with every category you examine. At a comparable price: a 10-inch wider beam that reduces rolling and steadies the platform for everyone on board. Nearly 6,000 lb less weight that transforms navigation performance — sharper response, better handling, lower fuel burn in real conditions. Divinycell foam core construction. 222 gallons of fuel range. ABYC and U.S. Coast Guard compliance. A 10-year structural warranty covering hull and deck. Production processes advised by Porsche Consulting for more than 10 years — from Fibrafort, Brazil's top-of-mind boatbuilder with the highest resale value in its market.
Same price range. Fundamentally more boat. That is the reason buyers who start by comparing photos tend to end up choosing the Granfort once they look at the full picture.
The 37-footer built for performance, range, compliance confidence, and long-term pride of ownership.
The Granfort 370 GTX is for the buyer who understands that comparable prices do not mean comparable boats. Wider beam. Less rocking. More responsive navigation. More fuel range. Better construction technology. Stronger warranty. At roughly the same price as the competition — Granfort is not just more boat. It is the right boat.
