Timestamps:
00:00 - Welcome
00:27 - Purchase Price
01:44 - Drivetrain Options
02:43 - Fuel Type
04:42 - Maintenance Costs
07:04 - Aesthetics
08:19 - Extras
Introduction
Choosing your van is the biggest decision you'll make in a van conversion project. Get it wrong, and you're living with that mistake for years.
I spent months researching the "big three" cargo vans: Ford Transit, Mercedes Sprinter, and Ram Promaster. I test-drove all three. I read hundreds of forum posts. I watched every comparison video on YouTube.
In the end, I bought a 2020 Ford Transit EcoBoost AWD with an extended wheelbase and high roof.
Here's why.
The "Big Three" Van Comparison
Before diving into my reasons, let's establish what we're comparing:
Ford Transit: America's best-selling cargo van. Available in dozens of configurations. Known for reliability and value.
Mercedes Sprinter: The "luxury" option. European engineering. Higher price point. Cult following in the van life community.
Ram Promaster: Front-wheel drive. Lowest interior floor height. Chrysler/Fiat partnership product.
All three are viable. Thousands of people have built incredible conversions with each. But for my needs, the Transit came out on top.
Reason 1: Purchase Price
The first category was purchase price. These vans come from the factory with a base price that includes no power windows, no power door locks, and you have to add everything else as options. The Transit is around $48,000 with all-wheel drive, the Promaster starts at $43,000 but is two-wheel drive, and the Sprinter is either $58,000 or $63,000 depending on the payload. When you spec them all similarly, the Transit is the most affordable.
Why this mattered:
The price difference was significant. The Sprinter’s cost is a major hurdle for many buyers. If I had gone with the Sprinter, I’d be spending $10k more, and that’s a lot for a van that’s not necessarily better in every way.
Reason 2: Drivetrain Options
The next category was drivetrain options. All-wheel drive is better than two-wheel drive but not as manually controllable as four-wheel drive. The Ford Transit can be upgraded to a four-wheel drive system aftermarket, which the Promaster doesn’t seem to offer. The Sprinter’s four-wheel drive is limited in some configurations.
Real-world impact:
The ability to upgrade the Transit to four-wheel drive gives me flexibility. If I had bought the Promaster, I’d be stuck with two-wheel drive, which isn’t ideal for some driving conditions.
Reason 3: Engine Options
The Mercedes Sprinter is predominantly diesel, while the Transit and Promaster are gasoline engines. I ruled out biodiesel due to issues with cold weather performance and the risk of fuel gelling. Gasoline engines are more reliable and easier to maintain.
Why this mattered:
Biodiesel’s problems in cold climates and the complexity of maintaining a diesel engine were dealbreakers. The Transit’s gasoline engine is simpler and more reliable for my needs.
Reason 4: Maintenance Costs
Mercedes Sprinter engines are complex and require certified technicians, which aren’t available everywhere. The Ford Transit engine is similar to Ford trucks, so parts and labor are cheaper and more accessible. The Sprinter’s maintenance is a hurdle, especially in remote areas.
Real-world impact:
The Transit’s maintenance is straightforward. If the Sprinter had broken down in the boonies, I’d have to tow it to a major city for service, which is a major inconvenience.
Reason 5: Aesthetics
From an aesthetic standpoint, the Mercedes Sprinter looks the best, the Promaster is boxy, and the Transit is a middle ground. The Sprinter is more stylish, but the Transit is practical and not as ugly as the Promaster.
Why this mattered:
The Sprinter’s looks were tempting, but the Transit’s balance between style and practicality made it the better choice for a van conversion.
Reason 6: Bonus Features
The Ford Transit has a mobile hotspot through AT&T and remote access features like starting the engine from a phone. These are convenient, but the mobile hotspot drains the battery quickly, so I’ll upgrade to two batteries.
Why this mattered:
The convenience of the features was a big plus, even though the battery issue is a drawback I’ll need to address.
What I Would Do Differently
I’d make the same choice, but I’d upgrade to two batteries for the mobile hotspot. For someone in 2026, I’d emphasize the battery drain issue and ensure they’re prepared for it.
The Bottom Line: Which Van Should YOU Buy?
Here's the honest answer: it depends.
If you prioritize:
Best overall value + reliability + parts availability: Ford Transit
European engineering + resale value + "cool factor": Mercedes Sprinter
Low floor height + tight parking + front-wheel drive: Ram Promaster
For me, the Transit checked the most boxes. But your needs might be different.
Key questions to ask yourself:
What's your budget? (Include conversion costs, not just the van purchase)
Where will you be driving? (AWD matters in snow; FWD matters in tight cities)
How tall are you? (Seriously — stand inside each van before buying)
Do you need to fit into parking garages or standard parking spots?
Can you work on the van yourself, or will you need a shop? (Parts availability matters)
Watch the Full Video
This post is adapted from my YouTube video where I walk through all six reasons in detail. If you want to see the vans side-by-side and hear my full thought process, check it out.
Questions about van selection or the Ford Transit specifically? Drop a comment.