Choose the right platform before you build the van.

A practical buyer’s guide comparing cost, livability, drivability, conversion difficulty, off-grid potential, and long-term ownership risk, scored across eight categories.

Best overall
Ford Transit AWD High Roof

Strong balance of service network, price, drivability, AWD availability, and conversion support. 82 / 100.

Executive Summary

Mercedes-Benz Sprinter

Premium benchmark. Best for high-end builds, resale value, diesel/4x4 buyers, and polished adventure rigs.

Best for: premium adventure vans

Ford Transit

The practical all-rounder. Excellent dealer network, strong drivability, available AWD, and broad build support.

Best for: balanced ownership

RAM ProMaster

Wide, square, affordable, and easy to build. FWD and flat floor make layout work simpler.

Best for: DIY value builds

Box Truck

Massive living volume and utility capacity, but much harder to park, drive, insure, and stealth camp.

Best for: tiny-home style builds

Meet the Platforms

Tap an image (or use the arrows, dots, or arrow keys) to rotate through view angles for each platform. More angles are added over time.

Deep Comparison

Eight categories, each with a detailed metrics table, a 1–10 scorecard, and a category winner. Switch tabs to explore each dimension, then jump to the weighted overall score.

Cost & Value

Weight 15%
MetricSprinterTransitProMasterBox Truck
New price (cargo)$57k–95k+$48k–75k$45k–65k$65k–120k+
Typical used (3–6 yr)$25k–65k$20k–55k$18k–45k$20k–75k
5-yr depreciationLow–ModerateModerateModerate–HighHigh
Est. annual insurance$1,600–2,800$1,400–2,400$1,300–2,200$1,800–3,500
Registration classPassenger/commercialPassenger/commercialPassenger/commercialOften commercial/DOT
Resale strengthExcellentExcellentGoodModerate
Sprinter
6
Transit
8
ProMaster
9
Box Truck
6

Category winner: ProMaster. Lowest entry and used pricing plus cheap parts make it the value leader. The Sprinter costs the most up front but claws value back through the strongest resale; the box truck’s low buy-in is offset by commercial insurance and registration.

Size & Space

Weight 12%
MetricSprinterTransitProMasterBox Truck
Max interior width~70 in~70 in~75.5 in90–96+ in
Width between wheel wells~53 in~54 in~57 inFull width (90+ in)
Interior height (high roof)67–79 in72–81 in65–76 in84–96+ in
Length options144–170+ in WB130–148 in (reg–EL)118–159 in WB10–26 ft box
Max cargo volume~533 cu ft487 cu ft524 cu ft900–1,500+ cu ft
Floor shapeSlight archesWheel archesFlattest, widestFully flat & square
Sideways bed fit (6'+)NoNoYes (widest van)Yes
Sprinter
7
Transit
7
ProMaster
8
Box Truck
10

Category winner: Box Truck. Nothing on wheels beats a box for raw living volume and square walls. Among the vans, the ProMaster’s extra width lets a tall person sleep sideways, reclaiming length for the galley and seating.

Drivetrain & Capability

Weight 14%
MetricSprinterTransitProMasterBox Truck
Drive layoutsRWD / AWD / 4x4RWD / AWDFWDRWD (dual rear)
Engine2.0L / 3.0L diesel3.5L V6 / EcoBoost3.6L V6 gas6.0–7.3L gas / diesel
Horsepower168–211275–310276300–350
Torque (lb-ft)266–369262–400250400–725
Payload3,000–4,000 lb3,000–4,600 lb3,000–4,400 lb3,000–10,000+ lb
Max towing~5,000 lb~6,500 lb~6,800 lb10,000+ lb
GVWR8,550–11,0308,670–10,3608,900–9,35010,000–26,000
Off-road / winterExcellent (4x4 + diesel)Very good (AWD)Fair (FWD + traction)Poor (road only)
Sprinter
9
Transit
9
ProMaster
6
Box Truck
7

Category winner: Sprinter & Transit (tie). The Sprinter’s true 4x4 with diesel torque is the trail benchmark; the Transit’s AWD is nearly as capable and cheaper. The ProMaster is FWD only (surprisingly good in snow, weak in deep sand/mud). The box hauls the most weight but stays on pavement.

Fuel & Efficiency

Weight 12%
MetricSprinterTransitProMasterBox Truck
Fuel typeDieselGasGasGas / Diesel
Observed MPG16–2215–2015–198–12
Tank size~24.5 gal + DEF~25 gal~24 gal30–50 gal
Highway range~400–500 mi~375–450 mi~360–430 mi~300–500 mi
Est. annual fuel (15k mi)$2,500–3,500$2,800–3,800$2,900–3,900$5,500–8,000
Emissions equipmentDEF / DPF dieselSimpler gasSimpler gasDEF diesel / gas
Sprinter
9
Transit
8
ProMaster
7
Box Truck
3

Category winner: Sprinter. The diesel delivers the best real-world MPG and touring range, at the cost of DEF/DPF emissions maintenance. Gas vans are close and simpler; the box truck’s thirst is the single biggest running-cost penalty on this page.

Reliability & Ownership

Weight 16%
MetricSprinterTransitProMasterBox Truck
Reliability reputationGood but priceyVery goodFair–GoodGood (commercial)
Common issuesDEF/emissions, rustMinor electronicsElectrical, 9-spdAge/mileage varies
Dealer / service networkModerateExcellentExcellentGood (diesel shops)
Parts costHighLowLowModerate
DiagnosticsOften dealerCommonCommonCommon commercial
Basic warranty3yr/36k + 5yr diesel3yr/36k + 5yr PT3yr/36k + 5yr PTVaries / commercial
Sprinter
6
Transit
9
ProMaster
7
Box Truck
8

Category winner: Transit. A Ford dealer in nearly every town, cheap parts, and gas simplicity make it the lowest-stress long-term owner. The Sprinter is the opposite end: capable but expensive to service with a thinner network, the reason it loses the most weight here.

Conversion & Build

Weight 13%
MetricSprinterTransitProMasterBox Truck
Aftermarket ecosystemLargestVery largeLargeSmall (custom)
Flat floorNo (slight)NoFlattestYes (fully)
Wall shapeCurvedCurvedMore verticalVertical / square
Bolt-in kits / windowsExcellentExcellentGoodCustom
Roof fan / rack optionsExcellentExcellentGoodAbundant roof area
Insulation easeModerateModerateEasier (square)Full weatherproofing
Build weight headroomGoodGoodGoodExcellent
Sprinter
9
Transit
8
ProMaster
9
Box Truck
6

Category winner: Sprinter & ProMaster (tie). The Sprinter has the deepest catalog of bolt-in parts; the ProMaster’s square, flat, wide box is the easiest raw shell to frame and insulate. The box truck is a blank slate with the most payload, but you build (and weatherproof) far more from scratch.

Daily Livability

Weight 12%
MetricSprinterTransitProMasterBox Truck
Daily drivabilityVery goodExcellentGoodPoor–Fair
Parking / maneuveringGoodVery goodGoodPoor
Turning radiusModerateTightTight (FWD)Wide
Stealth campingGoodVery goodGoodVery poor
Garage / urban fitFits manyFits mostTall (>7 ft)Rarely
Ride comfort / noiseRefinedComfortableUtilitarianTruck-like
Overall height~9–10 ft~8.9–9.5 ft~8.5–9 ft10–12+ ft
Sprinter
8
Transit
9
ProMaster
7
Box Truck
3

Category winner: Transit. It drives closest to a normal vehicle, parks easily, and stealths well. The Sprinter is the most refined but tallest of the vans; the box truck trades daily usability entirely for living space: parking, stealth, and clearance are constant compromises.

Off-Grid & Systems

Weight 6%
SystemSprinterTransitProMasterBox Truck
Roof solar capacity300–800W300–800W300–800W800–1,600W
Battery bank200–600Ah200–600Ah200–600Ah600–1,200Ah+
Fresh water20–40 gal20–40 gal20–40 gal50–100+ gal
Gray water5–25 gal5–25 gal5–25 gal25–75 gal
Heating / AC headroomGoodGoodGoodExcellent
Best use caseMobility + trailheadsBalanced mobilityValue mobilityStationary tiny-home
Sprinter
8
Transit
7
ProMaster
7
Box Truck
10

Category winner: Box Truck. Roof area, floor volume, and payload let a box carry far more solar, battery, and water, ideal for long stationary stays. The vans are closely matched; the Sprinter edges ahead on the longest roofs (170" wheelbase).

Overall Weighted Score

Each category’s 1–10 scores are multiplied by the weights below (tuned for a typical two-person adventure camper) and summed to a 0–100 result. Reliability, cost, and capability carry the most weight; off-grid the least, since most builds prioritize mobility over stationary living.

Category (weight)SprinterTransitProMasterBox Truck
Cost & Value (15%)6896
Size & Space (12%)77810
Drivetrain & Capability (14%)9967
Fuel & Efficiency (12%)9873
Reliability & Ownership (16%)6978
Conversion & Build (13%)9896
Daily Livability (12%)8973
Off-Grid & Systems (6%)87710
Weighted total (100)77827565
1st · Best overall
Ford Transit
82 /100
Balanced all-rounder
2nd
Sprinter
77 /100
Premium benchmark
3rd
ProMaster
75 /100
Best value / DIY
4th
Box Truck
65 /100
Max living space

Change the weights to match your priorities and the ranking can shift: a full-time stationary builder should raise Size and Off-Grid, which narrows the box truck’s gap; an off-road traveler should raise Capability, favoring the Sprinter.

Conversion Budget Ranges

  • Basic weekend build: $8k–20k
  • Comfortable DIY build: $20k–50k
  • High-end DIY / semi-pro: $50k–100k
  • Professional luxury build: $100k–250k+

Hidden Costs

Plan for tax, title, insurance, registration, tires, suspension upgrades, roof fan, insulation, heater, electrical system, solar, batteries, shore power, cabinetry, plumbing, water tanks, toilet, fridge, induction, and maintenance reserve.

Layout Implications

Sprinter

Best for premium longitudinal bed layouts, large garage, shower galley combos, and clean cabinetry.

Transit

Excellent for fixed bed + garage, convertible dinette, rear lounge, or balanced two-person adventure layout.

ProMaster

Wide enough for many sideways bed designs, saving valuable interior length for galley and seating.

Box Truck

Supports true tiny-home layouts: separate bedroom, full wet bath, larger kitchen, dinette, office, and bigger tanks.

Recommendation

Choose the Ford Transit AWD High Roof Extended if you want the best total package for a conversion van: good price, available AWD, excellent service availability, comfortable road manners, strong resale, and enough interior room for a serious two-person build. It tops the weighted scorecard at 82/100.

Choose the Sprinter (77) if you want the premium benchmark and true 4x4, and can absorb higher repair costs. Choose the ProMaster (75) if you want the easiest and most affordable DIY interior. Choose the Box Truck (65) if living space matters more than parking, stealth, MPG, and daily drivability.

Source Notes

Pricing and specifications were compiled from manufacturer pages and current commercial listings as of June 2026. Scores are editorial estimates for a typical two-person adventure camper and are meant for relative comparison, not exact figures. Always verify exact configuration, destination charge, dealer fees, incentives, emissions rules, insurance, and registration requirements before buying.

  1. Mercedes-Benz Vans official Sprinter Cargo Van MSRP/specs.
  2. Ford Pro official Transit fleet van starting price and Ford Transit cargo volume/payload specs.
  3. RAM official ProMaster MSRP and cargo-volume claims.
  4. Commercial box truck market listings for Isuzu/Ford/Chevrolet examples.