This morning, something amazing happened. The RV that so many people have been waiting for years has finally started being delivered to customers. The Wingamm Oasi 540.1 is an ultra-compact motorhome that’s shorter than most half-ton pickup trucks, is designed to drive like a car, and yet has an interior that puts a camper van to shame. Wingamm has promised a market entry into the United States for four years. Finally, it’s here, and if you bought one today you should have it in time for spring. A lot of changes have happened to get the Wingamm Oasi 540.1 to America, so let’s check it out.
The news I have for you is technically even better than I told you in the lede. Wingamm actually started deliveries this month. The coaches you’re seeing on your screen today were already purchased and they will be delivered to their owners after the 2025 Florida RV SuperShow ends. Wingamm is now trying its best to kick production into high gear with shipments expected this year and beyond. The delivery schedule is sort of weird, but it’ll make sense as you read on. These coaches are built in what’s perhaps the least efficient way possible, but there’s at least a good reason for it.
Today, Wingamm celebrated crossing the finish line after a development timeline stretched so long that some people were scared it wasn’t going to happen. I got to play with the units that you can buy right now, and I like so much of what’s going on here.
Some Americans are falling out of love with the gigantic buses that pepper campgrounds. Large RVs are as tied to the image of America as the cheeseburger or baseball, but a new kind of RV wants to threaten the mammoth coach’s dominance. Since I started reporting on RVs over four years ago, I noticed that there are a lot of people who don’t want to drive a big bus, pay to fuel such a giant, or really just deal with a vehicle of that size A growing number of Americans want an RV that’s big on space, but will also fit into a parking space.
In other words, a lot of people seemingly want the Doctor’s TARDIS, but such a vehicle seems mythical. Sure, you could buy any number of camper vans, but some people would argue that those truly aren’t big on space. You can step up into a Class C, but now you’re getting into something that these people feel is too large. As it turns out, Europe has long had the answer to this conundrum. See, while RVs do get comically huge in Europe, the vast majority of the rigs you’ll find in Europe seem like quaint cottages compared to the beastly wheeled penthouses that American retirees pilot on standard driver’s licenses.
A number of companies have figured out that there are a lot of people who are done with the big, blocky, and boring coaches built and sold in America. Their solution is simple: Bring the forbidden fruit to America. That’s exactly what Wingamm is doing here. The Oasi 540.1 is simply the Americanized version of the 540 coach that’s already a successful product in Europe.
However, as Wingamm figured out, converting a Euro RV into one built to U.S. standards isn’t as easy as you might think. Wingamm announced its entry into the United States in early 2021 with a projected launch later that year. Wingamm then missed three more launch dates. Heck, the American version has been in development for most of my writing career thus far. In May 2024, I reached out to Wingamm to get an explanation for all of this. I was told that the launch was happening “soon.” As it turns out, “soon” meant January 2025. But hey, we live in a world where startups make huge promises and never deliver. I’m always happy when a product actually reaches the market!
If you’re interested in learning about Wingamm’s history, click here to read my previous coverage.
Triumphing Over Bad Luck
A series of unfortunate events befell Wingamm in 2021. First, the Wingamm people told me, the company got caught up in the COVID-19 pandemic supply shortages from multiple angles. Stellantis makes the Ram ProMaster in Mexico, but parts shortages choked its production. That slowed down development. Then, when the cutaways finally got to Italy, Wingamm’s U.S. parts suppliers fell through due to their own pandemic-related issues, meaning the company couldn’t even finish the test coaches they had sitting around.
Wingamm tells me that the company then had to find new suppliers for numerous substantial parts for the Oasi, including plumbing. Only then did Wingamm finally have enough parts to begin completing prototype vehicles.
While all of this was happening, Wingamm also imported a European-spec Oasi 540 into America. Wingamm used this RV as a demonstrator for the RV show circuit and as a way to gather feedback on what the company should change just for the American market.
I first saw the Oasi 540 at the 2023 Florida RV SuperShow. This RV was a real piece of forbidden fruit. Sure enough, the coach really was based on an Italian market Fiat Ducato, not a Ram ProMaster. The engine under the hood was a 2.3-liter Iveco F1A diesel four making 175 HP and it’s an engine that never came in the American-spec ProMaster. The interior was also what the Europeans got.
None of this really mattered because the public at the 2023 show went wild. People were in love with the Oasi’s 17-foot, 6-inch footprint, yet somehow impressively roomy interior. The Oasi 540 is shorter than most large camper vans and is practically dwarfed by many half-ton pickup trucks. Yet, it also has an interior with room to spread out like a Class C.
Sadly, Wingamm told me, the Oasi 540 show vehicle was imported purely for display purposes. It wasn’t legal to drive on the road and eventually, they had to send it back to Italy. However, what that Oasi 540 sent back to Italy was important feedback to help the company adapt to the needs of the American buyer. The image above and below are what that prototype looked like.
Wingamm then put the Oasi 540.1 back into the oven and more waiting ensued. The company had to wait for vehicles to be shipped from Mexico to Baltimore and then from the port there to Italy. Wingamm then slapped on bodies and sent them back to the United States. Then, Wingamm had to get the RV certified by the authorities. It has taken four years for all of this to happen.
Now, you might think the whole shipping situation is weird and I do, too. Wingamm tells me that it’s an imperfect solution. Apparently, Stellantis pays to get the ProMasters to Boston or Baltimore, where Wingamm then fronts the cost to get the cutaways to Italy, where they’re finished into RVs before being sent back to America. Shipping vehicles by boat takes forever, which is why Wingamm’s shipments are staggered. Wingamm thinks the ultimate solution to this is building the one-piece fiberglass RV bodies here in America, but Wingamm wants to make sure that whatever company it chooses will be as dedicated to quality as the factory in Italy is.
But for now, we have this weird setup where your Wingamm Oasi 540.1 basically sails around the world before you even fire it up for the first time.
The Trip Is Worth It
So, what will Americans get when they buy an Oasi 540.1? Let’s start with the exterior. Attached to the front of the Wingamm is a Ram ProMaster cutaway featuring a 3.6-liter Pentastar V6 276 HP. That’s driving the front wheels through an automatic transaxle.
I popped the hood on this bad boy and sure enough, there is a Pentastar nestled in the engine bay. Serviceability doesn’t look great and reportedly, even a simple spark plug change can be a bit of work, so keep that in mind.
Attached to the back of the cab is Wingamm’s signature fiberglass and polyurethane monocoque. Wingamm says that this solid piece of fiberglass is well-insulated for camping in any weather. But more than that, this structure has far fewer points where water could get in and it doesn’t creak, either. Unlike some designs, you won’t find any metal in the body of the Oasi 540.1.
It holds its shape entirely thanks to a sandwich consisting of two fiberglass panels with polyurethane foam inside for insulation.
Feedback from prospective customers went into a lot of small changes that add up to a big difference. The old tiny sliding window was ditched for a larger Dometic window that opens wide. The European-style entry step was replaced with a stronger step. Even the entry door got a minor update to be easier to operate. Likewise, the entryway now has a grab handle.
Up forward a bit, the hatch covering the propane tank compartment now latches better as well.
The rest of the storage compartments are still largely unchanged. There is a basement of about medium size in the rear of the rig and a nice compartment on the left as well. One controversial element is the RV’s waste tank, which remains a 5-gallon cassette tank.
When I talked to multiple people at these RV shows they were split on this. Some liked the convenience of a small tank that’s easy to dump. Others don’t like the idea of potentially filling up a small tank fast. One person went as far as to describe in detail how she’d fix it.
That woman told me she’d slide a larger tank into the rear “basement,” cut a hole into the fiberglass leading to the compartment with the cassette in it, and then connect the waste hose.
The real magic of the Oasi 540.1 happens inside. Walk through the door and you’ll be surprised that Wingamm somehow fit a ton of room into a space that’s shorter than a half-ton truck.
Here’s the prototype’s interior, for reference:
Go ahead, spread your arms out like wings! They won’t hit the walls. Then, walk down the aisle. Camper vans often force bigger people like me to walk sideways and I still end up dragging my butt up against a cabinet or door. That’s not a problem in the Oasi 540.1. It feels like you’re walking inside of a Class C coach. Funny enough, Wingamm originally marketed the Oasi as a Class C motorhome but has since realized that it doesn’t perfectly fit into that category. Likewise, it’s not a camper van either. It’s more like something between the two.
The biggest change in the interior happened at the counter. The cooktop has been swapped out for a different unit while the sink is now more elegant than the previous version. The stereo speakers have also been moved elsewhere for a cleaner look.
Everything else is exactly as Wingamm had it when I saw it in 2023. In terms of materials, you’re getting Rubelli fabrics for the seating areas and curtains, Brivio Italian poplar plywood for counter surfaces, Arpa Ker Laminates, and Kaindl Optimatt laminates for the cabinetry and walls. Further detail comes from Zamak alloy hinges and the furniture is bonded to the fiberglass structure rather than screwed in place. Wingamm says the latter maintains the structure’s strength while eliminating squeaks and rattles.
Personally, I love this interior. The fit and finish are phenomenal and it’s clear that someone actually thought about everything that you touch in here. The counter is sturdy and smooth, the leather is supple, and the meaty cabinet doors close with confidence. If the RV builders in Indiana had quality like this I don’t think anyone would complain.
When it’s time to go to sleep, the Wingamm has two beds. The dinette, which sits on a set of tracks and can be put into any position, retracts and turns into a bed for two. Then, you can just pull the coach’s big bed down from the ceiling and get another bed for two.
That special Wingamm trick ceiling bed holds 770 pounds and I think it would be perfect for an adult couple. The people sleeping up there get their own skylights, which also open to let some fresh air in.
Perhaps my favorite part about this interior is the bathroom. Now, the bathroom in the Oasi 540.1 is nominally a wet bath, which means you shower in pretty much the same place you defecate. But here’s the thing, this wet bath was configured so well that it actually feels like a normal bathroom.
There’s just so much space to move around and get comfortable. The bathroom in the Oasi 540.1 is so big that I was able to take a bathroom selfie, which is something I normally can’t do in a rig this size. Heck, not even my parents’ 40-foot travel trailer has a bathroom this roomy.
In terms of equipment, you’re getting everything you’d expect in a small motorhome. This has air-conditioning, a 26-gallon water tank, and ample kitchen space. For heat, there’s a traditional RV heater and a radiant floor heat system. House power comes from two AGM batteries with 95 Ah each. Those batteries link with a BOS LE300 322 Wh lithium battery to create a hybrid house battery system. The LE300 is there to add more off-grid time into the system while extending the lifespan of the AGM batteries. Otherwise, you can option your Oasi 540.1 to have two lithium batteries. Standard, the coaches will also come with 210W of roof solar. All in, you’re also looking at a curb weight of 6,062 pounds as well.
In terms of options, there are few but they are pretty cool. You can get a tow hitch, a bike rack, a microwave, and a television. If you can’t be bothered to stock your rig yourself, you can even order it with plates and silverware.
Might Be A Home Run
As of right now, you can buy three versions of the Wingamm Oasi 540.1. The standard model is all-white with stone-like interior accents. The Fashion Edition has neat graphics outside and a mostly white interior inside. Finally, there’s the Black Edition, which is like the standard model with black graphics.
When Wingamm first announced its American entry, it said the price would be around $145,000.
That was later revised to $188,500 after the modifications and the certification process were accounted for. True to their word, the production Wingamm Oasi 540.1 is selling right now for that $188,500 price.
Now, I won’t sugarcoat it, that’s a whole lot of money. You can buy a lot of bigger RVs for a lot less money. However, here’s how I see the Wingamm Oasi 540.1: It’s a good alternative to a luxury van. Winnebago wants to sell you a Mercedes-Benz Sprinter with a Fisher-Price-quality plastic interior for $254,000. Even the Airstream Interstate 19 is $228,900. Yes, the Oasi 540.1 is smaller than either of those vans and it’s based on the lowly ProMaster rather than the fancy Mercedes, but the interior of the Wingamm just blows the Winnebago entirely out of the water and I think is better than the Airstream, too.
I think if you’re the kind of person who has $200,000 to spend on a camper van, just forget the van entirely and buy the Wingamm Oasi 540.1. This has more storage, more room to spread out, a better bathroom, and a smaller footprint. The Wingamm Oasi 540.1 is small enough and reportedly drives so much like a minivan or a car that Wingamm sees some owners using it like an MPV where they use it as a camper on the weekends and use it for the school run during the week. I could see some people using it like that.
In terms of production, Wingamm says it expects to build under 100 examples for the U.S. market this year. This is due to the limitations of the factory in Italy, which already has to churn out lots of RVs for Europe. Wingamm’s plan is to expand and ramp up production so that a steady flow of these comes to America. For now, I’m told the next batch comes to America in March. If you order yours now, the company says you should be able to get it then.
Wingamm’s dealer and service network is currently just a few centers spread thin across the country. This is also expected to change. For now, Wingamm is focused on just getting these rigs out to customers. I’m told you should also expect an update to Wingamm’s website soon, too.
Other good news comes from the fact that Wingamm also has larger models in the pipeline for the U.S. market. The company also wants to bring over the larger 610 and 690 models, which have much larger storage compartments. However, the company says it wants to get the 540.1’s sales chugging away before it adds more to the U.S. lineup. If everything goes to plan, Wingamm says the bigger ones might be here in 2026 or so.
Honestly, I’m pretty stoked to say that you can buy one of these right now and not some far-off date in the future. I’ve been hearing RV owners talk about the Wingamm Oasi for four years now as if it were a mythical creature like Bigfoot. But here it is finally in America and ready to go camping. Time will tell if this concept will be successful, but I know I can’t wait to saw some logs on that ceiling bed.
I would not trust a Stellantis FWD powertrain. F that, especially since it’s difficult to service. If it had the 2020+ Toyota Highlander powertrain, that’d be a different story.
Every time I stop and do the math on potential RV/motorhome ownership, it never makes sense to me. But I always find this site’s RV content compelling and entertaining, largely because I can feel Mercedes’ passion for the subject in her writing. Keep ‘em coming.
Also, great pic; you look fabulous, ma’am!
Mercedes, Look at you flashing that million dollar smile! Looking great!
Yes, they sell a lot of ProMaster trucks because it’s costs a lot less. And it costs less because it’s cheap. My work truck was a Sprinter and I loved it. But on several fly away out of town jobs we had to rent Ram Promaster vans and every time I wanted to drive the thing off a cliff. Crap build quality, crap NVH, crap comfort, and on and on. They’ve earned their hateful reputation.
I think the person who buys the Wingamm is going to be happier they did and for longer due to the superior material and construction. When you buy bigger you are just buying air.
Using the 4% rule, $188,500 invested could be counted on to throw off $7,540 per year in income pretty much forever. That is a lot of Air BNBs and hotel rooms.
You could probably go 5% or 6% even, you don’t need it to last forever and/or can skip the down years as to not deplete it as quickly.
The thinking behind your comment is why I couldn’t get the wife behind the RV idea. She figured out how many other places we could stay with the same money and not have to insure/title/store any sort of behemoth.
A couple of thoughts:
I see comments on cost. RV cabinets, electrical systems, plumbing, upholstery, insulation are expensive regardless of the vehicle’s footprint. Yes, a 40-foot A-class has more volume than a Sprinter, but my B-class has the same functionality and systems as an A.
Only the number of cabinets and amount of upholstery is different between a Wingamm and an A class, which explains the cost parity.
OK, it has a lot less space, but I still would rather have something like this:
https://www.truckscout24.com/tsp/ts-181-13-961
1: It has the whole body of the van, instead of being a plastic snail shell on top of a cutaway chassis.
2: price.
I don’t get the point of this AT ALL. If you can live with this amount of space, just get a slide-in camper for a pickup! Then, when you AREN’T camping, you still have a pickup, not a single-use vehicle. When my folks had one, it only took 15 minutes to get the thing in or out of the truck. Theirs was gigantic, but they come in many sizes, with my favorites being the ones with the pop-up tops so they aren’t 20′ tall going down the road.
Every RV, and I will include travel trailers in the following generalization, are a compromise. First, I have nothing against slide-ins. A family member has one and it suits their needs well. The advantage to a slide-in is that it decouples the drivetrain choice from the camper choice. If the truck reaches the end of its life, one can trade it for something new or better and keep the slide-in. Or vice-versa.
The advantages to an A, B and C-class vehicle include the ability to move from the driving area to the living space without going outside. It’s not safe, but the passenger can, for example, get up and make the driver a sandwich or grab a drink without stopping the vehicle. Also, A, B and C-class vehicles tend to be more space efficient than slide-ins.
As I mentioned, no RV class type is perfect for every buyer. All are compromises.
My parents ‘upgraded’ from a 5th wheel to a full RV for that exact sandwich making scenario.
Even after selling the diesel pickup and 5th wheel to get the RV, that was one crazy crazy expensive sandwich.
Then there is the minor issue of hoping to God your parents aren’t in an accident while making that sandwich. I knew someone who died when the RV they were riding in flipped over while they were up and about – tire blowout. If the vehicle is moving, my butt is going to be seated and belted in. Even if you are the best driver in the world, that won’t stop some other idiot from running into you.
The ONLY RV I would be remotely comfortable being up and about in is a proper coach conversion. 25-30T of road-hugging steel and aluminum mass really does add a level of safety that the typical sticks, plywood, cardboard, plastic, and prayers RV built on a truck chassis simply does not have. Living in God’s Waiting Room, FL, I have seen the aftermath of a few too many RV accidents. It’s never pretty.
Here’s one that happened right in my town recently, and at relatively low speed, probably 35-40mph:
https://www.fox4now.com/port-charlotte/family-facing-homelessness-after-motorhome-destroyed-in-us-41-crash
Worst-case scenario of getting T-boned by a semi, and very much the RV driver’s fault, but reality is a big pickup would have gone right through the thing too. Both people lived, but they were belted in the front seats. Imagine if one had been making sandwiches…
Mom is dead now, so she’s safe from any sandwich making accidents.
Everything in life is a compromise. When you are talking about an RV the size of a porta-potty, not being able to get out of the cab without stopping doesn’t seem like much of a problem. <shrug> I find *$140K* for this thing a very tough pill to swallow given it is utterly useless when you are not actually using it to live in. That seems like a much, much bigger compromise than having to stop to make a sandwich.
There is a strange amount of hate for the ProMaster in these comments, which seems to be coming out of the blue. This is the same vehicle that has racked up millions (or likely tens of millions) of miles in the USPS package fleet, to say nothing of the thousands of contractors who use these daily. It’s based on the Fiat Ducato, which has tens of millions more miles under its belt, and yet the ProMaster is designed to be even more rugged for North American duty. And the FWD platform makes it extremely space-efficient. That alone is probably the deciding factor for upfitters, since it’s not like there are any other options for FWD cargo vans in this country.
There’s nothing much wrong with a Ducato. Except it was never intended to be powered by a Pentastar. It’s the same old problem…stuffing an American driveline in a European van that wasn’t designed for it and doing it with a redneck budget is bound to cause issues.
OK, what exactly are the issues? They don’t seem severe enough to have dissuaded the large number of fleet owners from racking up miles. See my previous comment.
(Also, for its first three model years, the ProMaster was also offered with the Iveco 3 liter diesel. It had a low take rate and was discontinued in this market.)
This is the Cadillac Allante of campers, minus the air freight. It’s refreshing and I’d consider one if I had the money. FWIW Japanese Class C motorhomes are relatively cheap, although you do have to contend with RHD, a 25-30 year old vehicle and conversion issues but I’ve seen them around for 4-5 years. You can even get 4wd and a manual transmission
Wingamm wants to make sure that whatever company it chooses will be as dedicated to quality as the factory in Italy is.
Hahahaha. This should not be a problem.
Wingamm sees some owners using it like an MPV where they use it as a camper on the weekends and use it for the school run during the week.
I hope they aren’t relying on this use case, because it’s not going to happen. There’s no need for it to happen. Anyone with the money for this has a suitable school-run vehicle. Honestly, you could buy one of thse Coachment Euro things and a minivan of your choice for the price of this Wingamm.
Too bad it is on a Ram Promaster chassis.