The Wingamm Oasi 540.1 is an Italian compact motorhome that entered the United States in January 2025 through an exclusive Wingamm USA distribution agreement. It is 213 inches (540 cm), or 17 feet 10 inches, long, yet provides sleeping space for up to four, a full indoor bathroom, kitchen, dining area and cassette sewage system.
Its defining feature is a one-piece fiberglass-sandwich monocoque living shell mounted on a Ram ProMaster chassis. That construction gives the Oasi a broader motorhome-style interior without abandoning the parking-friendly footprint of a small van.
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What is the Wingamm Oasi 540.1?
The Oasi 540.1 is a European Class B-style motorhome built by Italian manufacturer Wingamm for the US market. New Atlas describes it as a hybrid approach: the vehicle retains a van chassis and compact exterior, while its fiberglass monocoque creates a larger, more integrated living compartment than a conventional van conversion.
The US launch was announced on January 14, 2025. Wingamm’s launch release said that having a full bathroom in a motorhome this small was “unheard of anywhere in the world.” That is marketing language, but the specification is genuinely unusual for a vehicle only 17 feet 10 inches long.
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How small is the Oasi 540.1?
The Oasi 540.1 measures 213 inches (540 cm) overall. That is shorter than the new Sprinter- and Transit-based camper vans discussed by New Atlas, although the available reports do not provide a like-for-like length table for each competing conversion.
At this size, the Oasi is aimed at owners who need a motorhome that can fit ordinary urban parking spaces, narrow roads and more residential driveways than a long-wheelbase van. The short body does not make it a car; height, turning circle and parking restrictions still need to be checked for the specific campsite or city.
What you get inside the short body
Four-person sleeping capacity
Wingamm and New Atlas both describe sleeping capacity of up to four. The exact sleeping arrangement can depend on the selected interior configuration, so buyers should confirm which beds are standard on the US-delivered vehicle rather than assuming every berth is permanently made up.
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A complete indoor bathroom
The Oasi includes a full indoor bathroom and a cassette sewage system. That is a materially different proposition from many small van conversions that use an external shower, a portable toilet or no bathroom at all. A cassette toilet also means the owner must plan for appropriate disposal facilities and routine cassette maintenance.
Kitchen and dining area
The floor plan includes a kitchen and dining area, giving the Oasi the core functions of a larger motorhome in a much shorter shell. The published material does not establish every appliance, tank capacity or storage measurement, so those items should be verified on the individual US specification sheet.
Climate-control equipment
Climate-control features are included, but the available launch information does not specify a complete heating-and-cooling parts list, output ratings or cold-weather certification. Those details matter if the vehicle will be used in winter or in hot, humid regions.
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Why the monocoque matters
Traditional camper vans usually convert the inside of an existing steel cargo van. Wingamm instead uses a single-piece fiberglass-sandwich shell for the living area. The shell is the structural and weather-sealing centerpiece of the Oasi, mounted over the Ram ProMaster platform.
- More usable width: the living shell can be shaped as a motorhome body rather than being limited entirely by the original cargo-van walls.
- Fewer conversion seams: a one-piece shell can reduce the number of joints that must be sealed against water intrusion, although long-term sealing still depends on construction quality and maintenance.
- Insulation potential: sandwich construction is intended to support a more insulated living space than bare metal panels, but published US launch material does not provide an insulation R-value or independent thermal test.
- Repair considerations: fiberglass body damage is repaired differently from a steel van body, so buyers should ask about approved repair procedures, parts and technician availability.
Oasi 540.1 versus familiar US camper vans
The table separates confirmed facts from specifications that were not stated in the available launch reports. “Not stated” does not mean a competing vehicle lacks a feature; it means the cited material does not establish a comparable figure.
| Comparison point | Wingamm Oasi 540.1 | Sprinter- or Transit-based camper vans | Winnebago Travato (2025) |
|---|---|---|---|
| Exterior length | 213 in (540 cm), or 17 ft 10 in | Longer than the Oasi in the New Atlas comparison; exact figures not stated in the supplied reports | Exact figure not stated in the supplied reports |
| Chassis | Ram ProMaster | Mercedes-Benz Sprinter or Ford Transit, depending on conversion | Ram ProMaster |
| Sleeping capacity | Up to four | Not stated | Up to two |
| Indoor bathroom | Full indoor bathroom with cassette sewage system | Not stated | Not stated |
| Living-body construction | One-piece fiberglass-sandwich monocoque | Not stated; conventional conversion layouts vary | Not stated in the cited comparison |
| Purchase price | US Oasi 540.1 price not stated in the cited launch reports | Varies by manufacturer and conversion; not stated | Not stated |
| Storage or garage volume | Not stated | Not stated | Not stated |
The Travato is the clearest chassis comparison because it also uses a Ram ProMaster, but the two vehicles target different priorities. The Travato’s published capacity is up to two sleepers, while the Oasi claims up to four and adds the monocoque body and full bathroom in a shorter package.
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What does a Wingamm Oasi cost in the US?
The cited launch coverage does not state a US retail price for the Oasi 540.1. It does report a $9,500 flat tariff fee for Oasi 540.1 units, according to RVBusiness in 2025. That fee is an import-related charge, not a complete delivered-vehicle price; transportation, dealer preparation, registration, taxes, financing and options can change the final amount.
For context, New Atlas reported a starting price of US$202,500 for the larger Oasi 610 GL. That is a separate model and should not be used as the price of the 540.1.
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Yes. Wingamm launched the Oasi 540.1 in the United States through an exclusive Wingamm USA distribution arrangement in January 2025. A US buyer should still confirm the current dealer, ordering process, warranty terms and delivery slot directly, because the existence of a distribution deal does not guarantee immediate inventory in every state.
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Questions to resolve before placing a deposit
- Ask for the exact US build sheet, including chassis year, appliances, tank capacities, heating and air-conditioning equipment, bed arrangement and any options.
- Get the complete drive-away estimate, separating vehicle price, the $9,500 reported tariff fee, freight, dealer charges, taxes, registration and optional equipment.
- Confirm who performs warranty work on the fiberglass shell, windows, plumbing, appliances and Ram ProMaster chassis.
- Ask how collision or fiberglass damage is handled and whether replacement body panels are stocked in the United States.
- Obtain a written delivery window rather than relying on a general model-year announcement.
What happened to the planned Oasi 610 and 690?
Wingamm planned Oasi 610 and Oasi 690 models for the US market in 2026. The reported Oasi 610 GL measures 240 inches (610 cm) and was listed by New Atlas with a US$202,500 starting price.
The available reports describe those models as planned or expected additions. They do not establish that every later model was delivering by September 30, 2026, so buyers should verify current production and delivery status with Wingamm USA.
Does the Oasi really upend the small-RV market?
It challenges the usual small-motorhome trade-off: buyers normally choose between a very compact van with limited bathroom space and a larger coach with easier living but more difficult parking. The Oasi attempts to keep the compact footprint while adding the facilities associated with a larger motorhome.
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1Repair Windows errors before they cause bigger problems2Fix the driver behind crashes, sound loss and screen glitches3Clear out junk files and repair common Windows errorsThat does not prove a market disruption by itself. Recreation Vehicle Industry Association data provides broader context: its March 2026 report recorded 2,324 Type B motorhome shipments year to date, compared with 2,063 in 2025, a 12.7% increase. Total motorhome shipments were 10,685 versus 9,318, up 14.7%. Those figures describe the market and do not show that Wingamm caused the growth.
Who should consider the Oasi 540.1?
- Urban and regional travelers: people who value a 213-inch footprint and still want an integrated bathroom.
- Couples traveling with children or occasional guests: the claimed four-sleeper capacity is unusual at this length, subject to the exact interior configuration.
- Owners prioritizing insulation and body integration: the fiberglass-sandwich monocoque is the central reason to choose the Oasi over a conventional cargo-van conversion.
- Buyers comfortable with specialist support: an imported, low-volume motorhome requires more diligence about parts, repairs and dealer coverage than a mass-market US model.
The Oasi is less compelling for buyers who need a large rear garage, a published high-volume storage specification, the lowest possible purchase price or a nationwide service network. Those requirements are not resolved by its short exterior length.
The Bottom Line
The Wingamm Oasi 540.1 is a genuinely distinctive US-available motorhome: 17 feet 10 inches long, built on a Ram ProMaster, and designed to fit four sleepers and a full bathroom into a monocoque fiberglass shell. Its compactness is the headline advantage; imported pricing, specialist service and confirmed delivery timing are the issues to settle before buying.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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