Choosing the right van is one of the biggest decisions in a campervan build. This page breaks down the three most popular full-size vans for DIY conversions in North America — the Ford Transit, the Mercedes Sprinter, and the Ram ProMaster — covering dimensions, specs, costs, and our honest opinion.
Side-By-Side Comparison
Specs
| FORD TRANSIT | MERCEDES SPRINTER | RAM PROMASTER | |
|---|---|---|---|
| Starting MSRP (2026 cargo van) | ~$48,000 | ~$49,000 | $44,960 |
| Engines | 3.5L V6 (275 hp) or 3.5L EcoBoost (310 hp), gas | 2.0L 4-cyl diesel (168 hp / 208 hp HO) — gas version dropped in 2023 | 3.6L V6 (276 hp), gas |
| Drivetrain | RWD or AWD | RWD or AWD | FWD only |
| Interior width (max) | 70.2″ | 70.4″ | 75.6″ (widest) |
| Standing height (interior) | Low 56.9″ Med 72.0″ High 81.5″ (tallest) | Std 68″ High 79.1″ | Low 65.4″ High 76.2″ Super High (2023+) 86.6″ |
| Cargo length (at floor) | Regular (130″ WB) 126.0″ Long (148″ WB) 143.7″ Extended 172.2″ | 144″ WB 132.9″ 170″ WB 173.6″ 170″ Ext 189″ | 118″ WB 105.1″ 136″ WB 122.8″ 159″ WB 145.9″ 159″ Ext 160.3″ |
| Annual repair cost (RepairPal, 350/2500 trims) | $888 | $1,778 | $1,147 |
| Electric version | E-Transit — 89 kWh, ~159 mi, from ~$53k | eSprinter — 81/113 kWh, up to ~249 mi, from ~$64k | ProMaster EV — 110 kWh, ~162 mi, from ~$58.6k |
U.S. Sales
Manufacturer-reported U.S. sales, compiled by GoodCarBadCar and CarFigures. *Sprinter 2025 is Mercedes’ official rounded figure for its U.S. van division.
Short Version
The Transit is the easiest van to own (dealers everywhere, cheap parts, AWD available, tallest interior). The ProMaster gives the most usable space per dollar — widest body, straight walls, low floor — as long as you can live with front-wheel drive. The Sprinter wins on diesel range and badge appeal, and costs you accordingly, both at the dealer and after the warranty ends.
Ford Transit
Overview
The Transit is the best-selling full-size van in the USA. Since the 2020 overhaul it offers AWD and modern driver-assist tech, and for 2026 the engine choices are a 3.5L V6 (275 hp) or the 3.5L EcoBoost (310 hp) — the strongest in the segment — through a 10-speed automatic. If you’re ordering new, our Ford Transit Order Guide covers every option worth ticking (and the ones to skip).
Build ANd Price
Style
- Cargo Van
- Passenger Van
Length
- Regular 18.5 ft (130″ WB)
- Long 20 ft (148″ WB)
- Extended 22 ft (148″ WB)
Height
- Low Roof (83.2″)
- Medium Roof (100.8″)
- High Roof (110.2″)
Engines
- 3.5L Direct Injection (Gas)
- 3.5L EcoBoost (Gas)
Drivetrain
- RWD
- RWD LSD (Limited Slip Differential)
- AWD (All Wheel Drive)
Use the Ford.com “Build & Price” interactive tool to build your own Ford Transit (and find out the price). Try it, it’s neat:
Exterior Dimensions
Interior Cargo Dimensions
All photos credit: https://www.adriansteel.com/item/cargo-vans/dimensions/
REGULAR LENGTH (130WB)
LOW ROOF
MEDIUM ROOF
LONG LENGTH (148WB)
LOW ROOF
MEDIUM ROOF
HIGH ROOF
EXTENDED LENGTH (148WB)
HIGH ROOF
Repair & Maintenance
$888 USD ANNUAL REPAIR COST (SOURCE: REPAIRPAL.COM)
Ford, Mercedes, or Ram: regardless of makes and brands, repair and maintenance is inevitable in the long run. Sure, you might get a free espresso at the Mercedes dealer, but Ford dealers are all over the map (dealer locator), are way cheaper, and have VERY good parts availability. That’s one of the main reason to go for the Ford Transit in our opinion.
How reliable is the Ford Transit? After nearly a decade of full-time Transit ownership across two vans, we publish every dollar we spend in our maintenance log & repair journal — real numbers, not estimates.
Our Opinion
WHAT WE LIKE
- Reasonable ownership cost.
- Extensive dealership network.
- Get parts cheap and fast.
- Drives like a minivan.
- AWD + tallest interior of the three.
WHAT WE DON’T LIKE
- Rear brakes wear fast. Keep an eye on them.
INITIAL COST: Back in 2015 we looked for a Sprinter (because that’s what everybody did), and quickly realized we could get a brand-new Ford Transit — full warranty, no previous owner, our exact options — for pretty much the price of a used Sprinter.
TEST-DRIVE: We test-drove both. The Transit felt like a minivan (nimble, predictable); the Sprinter felt like a full-size cargo van.
COMMON SENSE: “If we had to buy a car, would we buy a Mercedes or a Ford?” We’d rather spend the difference on mountain biking gear and adventures than on a badge.
We bought a brand-new Transit in 2016, then did it again in 2021 for FarOutVan 2. That’s our review in one sentence.
Resources
MODIFICATIONS & OEM GUIDELINES
ONLINE COMMUNITIES
Mercedes Sprinter
Overview
The Sprinter is the original camper-van icon, and the current generation got a meaningful update: since the 2024 model year every Sprinter runs a 2.0L 4-cylinder diesel (168 hp standard, 208 hp high-output) through a 9-speed automatic — the gas engine and the old V6 are gone. The legendary 4×4 was replaced by a proper AWD system in 2023. It still offers the best fuel economy of the three and the longest options list, and it’s still the most expensive to buy, service, and repair.
Build ANd Price
Style
- Cargo Van
- Passenger Van
Length
- Standard 19.5 ft (144″ WB)
- Long 22.8 ft (170″ WB)
- Extended 24.15 ft (170″ WB)
Height
- Standard Roof (96.3″)
- High Roof (110″)
- Super-High Roof (120.1″)
Engines
- 2.0L Turbo (Gas)
Drivetrain
- RWD
- AWD
Exterior Dimensions
Camper-relevant configs: 144″ WB High Roof (132.9″ cargo length), 170″ WB High Roof (173.6″), and 170″ Ext High Roof (189″). Interior width 70.4″, standing height 79.1″.
Interior Cargo Dimensions
All photos credit: https://www.adriansteel.com/item/cargo-vans/dimensions/
STANDARD LENGTH (144WB),
LOW ROOF:
LONG LENGTH (170WB),
HIGH ROOF:
EXTENDED LENGTH (170WB), HIGH ROOF:
Repair & Maintenance
$1,778 USD ANNUAL REPAIR COST (SOURCE: REPAIRPAL.COM)
Sprinters are great until things go wrong. Dealers are concentrated in major cities, parts & labor are costly, and parts availability can take time. The 4-cylinder simplification may help long-term, but a diesel with modern emissions equipment (DEF, DPF, EGR) is never the cheap option to keep healthy out of warranty.
Our Opinion
WHAT WE LIKE
- Good Mileage.
- Free espresso at the dealer.
WHAT WE DON’T LIKE
- High ownership cost.
- High risk of turning into a money pit on wheels.
Resources
MODIFICATIONS & OEM GUIDELINES
Body And Equipment Guidelines (BEG) :
ONLINE COMMUNITIES
Ram ProMaster
Overview
The ProMaster got a real refresh in 2023: new front end, updated interior, a 9-speed automatic behind the 3.6L V6 (276 hp), and a new Super High Roof option for standing height the others can’t match. It remains the budget-friendly choice — and the box is the best in the business: the widest interior (75.6″), nearly vertical walls, and the lowest load floor (~21″). If maximizing build space per dollar is the goal, this is the van. One thing hasn’t changed: it’s still front-wheel drive only — no AWD option.
Build And Price
Style
- Cargo Van
- “Window” Van
Length
- 136″ WB 17.75 ft
- 159″ WB 19.75 ft
- 159″ WB Extended 20.85 ft
Height
- Low Roof (88″)
- High Roof (99″)
Engines
- 3.6L Pentastar (Gas)
Drivetrain
- FWD
Use the RamTrucks.com “Build Your Van” interactive tool to build your own ProMaster van:
Exterior Dimensions
Interior Cargo Dimensions
All photos credit: https://www.adriansteel.com/item/cargo-vans/dimensions/
136″ WHEELBASE
LOW ROOF:
HIGH ROOF:
159″ WHEELBASE,
HIGH ROOF:
159″ WHEELBASE EXTENDED,
HIGH ROOF:
Repair & Maintenance
$1,147 USD ANNUAL REPAIR COST (SOURCE: REPAIRPAL.COM)
Mechanically it shares plenty with the wider Stellantis parts bin (the 3.6L Pentastar is everywhere), so ownership costs stay reasonable and most shops can work on it.
Our Opinion
WHAT WE LIKE
- With its “square” cargo area, the ProMaster is the widest of all vans, and straight walls are easier to build in.
- Reasonable ownership cost.
WHAT WE DON’T LIKE
- Front Wheel Drive (thumbs down, that’s right). A converted van has more weight on its rear axle, which means more traction on the rear wheels. Here in British-Columbia, we frequently have to go up very steep 4WD high-clearance roads to get access to our favorite mountain-biking trails or backcountry skiing zones; a front wheel drive doesn’t have enough traction to do this. Seeing the astonished reaction of people when we arrive on top of what’s considered a rough 4WD road doesn’t get old 🙂 “Is that van four wheel drive?
Knowing that MORE WEIGHT = MORE TRACTION, we’re glad our van is RWD!
We get more traction when climbing a steep incline, because there is even more weight on the rear axle!
Reality Check
We reached out to a friend who lived in his Sprinter van for 4 years and just switched to a ProMaster (full time as well). Keeping the same habits, he says that he got stuck as much in 3 months as he did in 4 years in his Sprinter. So while we have nothing against the ProMaster (we have absolutely no affiliation with any brand), it might not be the best vehicle to take on the back roads.
Resources
BUILD & PRICE YOUR OWN RAM PROMASTER
MODIFICATIONS & OEM GUIDELINES
Design Recommendation
Frame Alterations
Wiring
Etc.
ONLINE COMMUNITIES
What About Electric? (E-Transit vs eSprinter vs ProMaster EV)
All three vans now exist in electric form, so the question comes up a lot. The honest engineering answer for 2026: not yet for full-time travel, plausible for regional weekenders.
- Ford E-Transit — 89 kWh battery, ~159 miles of rated range, from ~$53,000.
- Mercedes eSprinter — up to 113 kWh and ~249 miles, the range champ, from ~$64,000.
- Ram ProMaster EV — 110 kWh, ~162 miles (city-biased rating), from $58,590.
Those are empty-van ratings. Add 2,000+ lbs of conversion (see our weight breakdown), a roof full of gear, winter temperatures, and highway speeds, and real-world range shrinks fast — and the chargers are rarely where the good trailheads are. We’re watching this space; we’re just not betting our home on it yet.
Best Van for Campervan Build: Our Humble Opinion
We’ve put our money where our mouth is twice now: a brand-new Transit in 2016, and another one in 2021. For how we travel — full-time, four seasons, up rough forest roads to trailheads — the Transit’s combination of ownership cost, dealer coverage, AWD, and the tallest interior is still the right answer in 2026.
But “best” depends on how you travel. If you stay on pavement and want maximum living space for minimum money, the ProMaster’s wide, square, low-floor box is a legitimately better building platform. Pick the van that fits your build and your roads — then check out our build journals to see what comes next:
THAT’S IT FOLKS, HOPE THAT HELPS!
i have a fort transit, e-Series, and im inLove with the Transit. better gas mileage .
When your Van stepladder goes missing, you can hang out a sign:
“Whoever took the stepladder, please return it – or further steps will be taken.”
Sounds like if you need any kind of offroad, the Promaster is a non-starter. But if you don’t need offroad and want something for cheap urban and suburban stealth living, then it seems to have the best internal dimensions with the highest width and squarish dimensions.
We had a 2015 Transit extended, High roof, ecoboost engine and loved it, especially the handling and power. In 2020 we decided to replace it with a new Transit, but could not find one with an EcoBoost engine which was non-negotiable for us. We drove a Promaster, it was a brand new leftover and the price was so low we couldn’t turn it down. Being mtn bikers and kiters, we have a lot of gear in our garage space. The Promaster (extended, high roof) fits our space needs OK but my husband HATES driving it. It seems to shift all the time and for no reason. It even drops down to a lower gear and holds the van back when going downhill. I got so tired of hearing him complain, we’re going back to the Transit. This is our LAST build out. At least now we know what we like and don’t like
The shifting problems seem to go away with time. Pedal management is crucial.
The benefits of the PM far out weigh the negatives
Hi to you both,
I just ordered a single rear wheels AWD Transit last december. My choice of a SRW over a double was based on a claim that some people make about the DRW tendency to float on the snow.
One advantage of the DRW that I ignored until yesterday is that the cargo width is 74 inches instead of 68.5 making it possible to lay the bed widthwise provinding 20 supplementary inches for the living space. Another advantage is the GVWR that can therefore increase from 9500 lbs to 10300 providing room for heavier accessories etc.
Have you guys heard of complaints regarding double rear wheels vans when driving in the snow, especially with AWD??
Have a Promaster 195″ tall. For a year now, no problem what so ever. Am I lucky?
BTW, there are Promaster before 2016 with 3.0 diesel engine and automatic-manual transmission. That one gets 23-25MPG, where mine gets 19-20(combined). I am at 17.8MPG now from running lately a lot of short trip in city. How much does your RWD gets? Besides, I never heard anybody loosing traction in a Promaster. For off-road yes, RWD is a must.
I have owned transits, pro master and express. They all have pros and cons. Agreed the pro master had a harder time making it up my snow covered drive in Vermont than rear wheel drive. Sometimes was worthless .. but I loved the seats , easy access to rear and short turning radius. Transits just offered the awd but the price starts in the 50 -60k range plus and they raised prices across the board. Love the eco boost engine too and gas mileage but tow capacity was horrible! 3900 pound tow on a 350 extended hd drw. Not much better than a minivan. Would buy another but hard finding one equipped how I want gently used at a good price. Express has the tow power at 9900 pounds, and. reliability but I just need the extra headroom. It would be great if the had an awd option again! The older awd model was a beast in the snow.
How about Chevy/GMC Express/Savana? I see a lot of those converted into vans. Seems like a good reliable vehicle and not as complicated to repair as some of the “modern” offerings mentioned here. It doesn’t have the high roof though, but to me that’s an advantage when talking about off road and hard to reach destinations.
YES! I am evaluating which van to buy to replace my 1999 GMC Savana 3500 Extended body that has a Quigley 4WD conversion. Doing tons of research and comparing. Need reasonable towing ability. /// A $72K Sprinter 4×4 3500XD with a $3K FrontRunner full roof rack and ladder is on the list but for $41K I get another GM 3500 Ext and I already have full rack on the 1999 that will transfer. Quigley will 4×4 convert used GM up to 60,000 miles for $13K so I can start with RWD and think about it and save my dollars for 50,000+ miles before going AWD. //// GM is cheaper to work on and easier to get service in the hinterlands and most any shade tree mechanic can handle it.
I think a Promaster makes the best van for camper conversion, you can mount the bed widthwise (freeing up a lot of space) and the lower floor makes the van really easy to step in and out of (no steps needed). We have the model with the lower roof, if you are under 5ft 9″ you can walk inside (bend your head a little, or slouch) and I can fit in a dozen or so underground parking lots downtown Vancouver even with the Solar and the Fantastic Fan on the roof! All other vans the low roof’s have very low height inside! Low roof’s are at great advantage when driving in wind. Every driven past the wind turbines near Palm Springs in a windstorm with a high roof? We have gone camping on logging roads many times and never been stuck. Have driven 15 hours North in January twice with snow covered roads and poor conditions, FWD has been excellent
I live 5 miles from the turbines. It’s summer 6 months out of the year. I don’t see ACs installed for the rear. Ice box won’t be ok either.
What an awesome and informative page. I want to let you know that there appears to be an error in the Transit dimensions shown in the linked diagrams. For instance, the length of the cargo area in the 130″ Transit is 104″ while the diagram shows 126″ (the cargo length for the 148″ wheelbase is also wrong). The source of these diagrams at adriansteel.com appears to have updated this to the correct dimension but I’m guessing you embedded the images when they had this error. Regardless of this error thanks for the great info.
great site! Tons of information with a minimalist design and intuitive layout. Love it!
I wanted to point out that the images you’ve pasted from Adrian Steel show different dimensions than the ones viewable on the Adrian Steel page.
Maybe Adrian Steel updated the dimensions? Neither this site of Adrian Steel note which model year the dimensions refer to.
The changes are significant though. For a Transit 148 High Roof the images hosted here say the interior is 144″ long and 81″ tall. Adrian Steel site uses images that say 121″long and 74″ tall.
FYI
Here’s what is listed on the Ford site for the 2020 models. The last two are the Long and Extended.
Cargo Length Front (at Floor) 126.0 126.0 143.7 143.7 143.7 172.2
Cargo Length Front (Belt) 115.9 115.9 133.6 133.6 133.6 162.0
Greetings,
Excellent website!
I’m getting ready to buy a Transit soon.
You give interior dimensions on the page that are greater than Sportsmobile.com. They provide dimensions and a template for sketching up layouts. For the Transit Extended Length, they show the length of the usable space for the conversion as 154+7(the narrower back area)=161″. You seem to list the same dimension as 172″. The same goes for the Long 124+7=131/144. I should probably go to the Ford dealership with a tape measure, but I thought I would alert you to the discrepancy and see what you have to say.
Thanks,
Dave
THANKYOU, thank you, thank you!!! for all that you do to make a wealth of info available. I have learned SO much from your site, and have recommended it to many people who are thinking about a life on the road. I recently picked up a 2015 Ford Transit 350 XLT HD Diesel, and am just starting my tear down and build up. My Driver side low beam is out and I have scoured the Internet to learn where it’s located. Nothing. I’m wondering if you know, and if it’s one of those flush mount fuses, how the hell and with what tool do you guys remove them when you need to? Appreciate You!
No idea, sorry. But the fuses location are all listed in the owner’s manual. Good luck!
I really wish you gave more info about the Nissan NV’s. I’m seriously looking into a van and so far have settled on them as they’re the best bang for the buck and the only downside/upside I see is the length of the front. It makes it longer than vans with equivalently sized cargo areas but makes it easier to do repairs.
That was my reason for getting an NV too. The front sticks out a lot, but you don’t need to drop the engine for repairs either. The VQ engine has won Ward’s best engine a few times too.
I’m a Nissan NV owner and I’ve did my build myself. I love my nissan and it’s so easy to do oil change and maintenance on yourself. I do all my oil changes myself while on the road. Having been in my nissan for the past five years you defiantly don’t get any love from the vanlife community so don’t be surprised if you roll up somewhere and get a cold shoulder from others.
Hi! Looking for a camper van for 2 adults and 2 kids which would require 2 passenger seats in the back. Looks to me like all options above are for 2 seats only. Any info on 4 seats?
Both the transit and the sprinter offer a passenger van model. I don’t know about the others. Maybe look into that and then take out the seats you don’t need for the build. Several class B RV manufacturers have a back bench seat with seatbelts that folds flat to make the bed, so it’s possible. And not long ago I saw b web site about a family of 5 that travels in their van during ski season, but I don’t recall the web site.
This site is a gem! I am new to van life and would like more information on how you organize your garage. The bike drawers are awesome but how did you make everything so accessible in your van, especially in the garage?
Hi! You’ll find out in our “Garage” entry of our Build Journal: https://faroutride.com/build-journal/
Cheers! 🙂
I’m not sure how you accomplished that unless you made everything of tungsten (my whole fullsize van only weighs 4600lb unladen!), but I’m sorry for my hasty criticism. Thanks for all the information on your site! I still hate my RWD, though :p
Your diagram “proving” the disadvantage of FWD does not reflect the “actual weight on axles”. It shows the RATED weight on axles, i.e. the maximum with every allowable ounce of cargo (roughly 4000lb). Did your conversion add the equivalent of a Chrysler 300?! Mine sure won’t. The heaviest load I ever moved netted 2260lb, completely filling a 2002 Ram Van with a mill and table saw, furniture, etc.
Most of the rated front axle load (engine, support systems, transmission, driver, passenger) is normally onboard, while a fraction of the maximum fills the sheetmetal box over the back. The old RWD Ram requires attentive driving to prevent spinning its wheels everywhere, including the moderate hump into my driveway. RWD was a reasonable compromise prior to solving the engineering problem of steering and driving the same axles. It may have some advantages for drag racing, etc., but not for off-road or bad-weather traction.
That’s the actual weight we measured at a scale, so it’s fair to say it’s accurate 😉
Awesome! Thank you! We currently have a 2014 Metris Sprinter. Don’t even get me started. We own a dog business and we bought the car for transporting dogs. It has been a complete nightmare. The only plus was breakfast at the dealership and even that is meh after I was told what the bill and time frame would be for returning my car.
It’s paid for. We will replace it. The Ford Transit is looking good but because of the ease of customization we also like the Ram. If someone offered me a free all expense paid (for the life of the car) Mercedes Coup—I would say NO! Never again!
Thanks for helping us with the process of deciding what our next vehicle will be!