Ford Transit vs Ram ProMaster vs Mercedes Sprinter for wheelchair vans: floor height, drivetrain, and upkeep

Which chassis suits which build

The three vans split on how riders get in. The Ram ProMaster carries the ramp builds, the Ford Transit carries the widest choice of lift layouts, and the Mercedes-Benz Sprinter carries the heaviest weight ratings with a high floor that calls for a lift. Side by side:

The body you pick also decides your ADA numbers, your lift class, and your fuel bill. The wheelchair van conversion guide explains what a converter changes on any of them. If you are still deciding between a minivan and a full-size van at all, start with wheelchair minivan or full-size van.

Ram ProMaster: front drive and the low-floor builds

The ProMaster is the only one of the three that drives the front wheels, and it carries the low-floor ramp builds. Ram’s 2026 spec for the 2500 with the 159-inch wheelbase and high roof lists a 3.6-liter V6 on regular gasoline, 236.2 inches of length, 102.1 inches of height, 76 inches of cargo height, and 4,000 pounds of payload on an 8,900-pound GVWR. MobilityWorks Commercial adds rear doors that swing out 260 degrees.

Converters offer three styles of build on it:

• Lowered floor with a side ramp. BraunAbility’s ProMaster Simple Stow is a long-cut, lowered-floor, side-entry van. It has a 13-inch step-in height, a single-panel doorway 37.5 inches wide and 72 inches tall, and a manual 33-inch in-floor ramp rated at 1,000 pounds with a 12.5 degree angle. BraunAbility describes the design as Buy America compliant.
• Kneeling rear ramp. Driverge’s ramp system on the 159-inch ProMaster 2500 high roof lowers the rear of the van 6 inches, down to 15.25 inches, with a hydraulic kneel. The aluminum ramp is 35.8 inches wide and 110 inches long, and it meets the ground at 9.25 degrees. Driverge says the manual ramp costs less to own than a powered lift.
• Lift. Driverge also builds a ProMaster for medical transport with an 800-pound side or rear lift, on the 1500 and 2500, in two lengths and two roof heights.

Ramps change the work at the curb. A driver pushing a manual chair up a ramp feels every degree, and a kneeling van needs room behind it for 110 inches of ramp plus the rider. With a lift, the rider goes up standing still on a flat platform, but the van gains a part that needs scheduled service.

Florida’s state transit vehicle contract gives a price reference for these bodies at the top of the range. Its order packets list a BraunAbility low-floor ProMaster 3500, 21 feet long with a 9,350 pound GVWR, at $148,877, and a 21-foot ProMaster minibus at 9,250 pounds GVWR for $139,847. These are transit-agency builds bought under a state contract, so a quote for a NEMT van will differ.

Ford Transit: the most floor plans

The Transit offers the most body choices of the three. Ford’s 2026 lineup comes with low, medium, and high roofs, a 130-inch or 148-inch wheelbase plus an extended body on the 148, and ratings from 8,670 to 11,000 pounds GVWR. Rear-wheel drive is standard and all-wheel drive is optional. Ford rates a T-350 with the 148-inch wheelbase and high roof at 9,500 pounds GVWR and up to 4,147 pounds of payload before conversion.

Driverge installs wheelchair lifts on the Transit 150, 350, and 350 EL (extended length), under all three roof heights. MobilityWorks Commercial builds the 130-inch van with a medium roof, the 148-inch van with a medium or high roof, and the extended body with a high roof only. The high roof or medium roof guide compares the inside and outside heights of each.

Lift choices are broad. Driverge fits side or rear lifts rated up to 1,000 pounds and offers floor plans with up to four wheelchair positions. Its layout sheet shows the trade each wheelchair makes:

• Transit 350, long wheelbase, side lift. From 8 seated passengers and 1 wheelchair to 2 passengers and 4 wheelchairs.
• Transit 350, long wheelbase, rear lift. From 9 passengers and 1 wheelchair to 5 passengers and 4 wheelchairs.
• Transit 350 HD, extended body, rear lift. From 14 passengers with no wheelchair to 4 passengers and 4 wheelchairs.

Driverge’s CurbSmart, on a sheet dated September 15, 2026, uses a structurally integrated lift on a 148-inch medium or high roof Transit. The platform measures 34 by 54 inches and comes in 800 or 1,000 pound versions, and Driverge says the design keeps the original frame, body structure, and climate system. MobilityWorks Commercial also builds the Transit with manual or powered ramps at the side or rear, and lists all-wheel drive and dual rear tires as options.

Florida’s contract prices a 22-foot Transit minibus at $97,035 with a 9,250 pound GVWR, and at $99,327 with a 10,360 pound GVWR. That second rating crosses a federal line covered below. Ford builds the electric E-Transit with rear-wheel drive only; the electric vehicles guide covers range and charging.

Mercedes-Benz Sprinter: diesel and the highest ratings

The 2026 Sprinter cargo van lineup runs on four-cylinder diesel engines only, in standard and high output, with rear-wheel drive and all-wheel-drive versions. The electric eSprinter is the other choice, from $52,700. The diesel cargo van starts at $48,990 for the 144-inch wheelbase with the standard roof. Mercedes-Benz publishes its numbers in full:

• Bodies. A 144-inch wheelbase at 234 inches long, a 170-inch wheelbase at 274 inches, and a 170-inch extended body at 290 inches.
• Roofs. On the 2500, the standard roof is 100 inches tall outside, with 68 inches of standing height inside. The high roof is 107 inches tall with 79 inches inside, and 111 inches tall with all-wheel drive.
• Weight ratings. 9,050 pounds GVWR for the 2500, 9,990 for the 3500, 11,030 for the 3500XD, and 12,125 for the 4500.
• Payload before conversion. 4,211 pounds for the 144-inch 2500 with a standard roof, falling to 3,704 pounds for the extended 170-inch body.
• Floor height. 27 to 29 inches from the ground on rear-wheel-drive models, and 31 inches with all-wheel drive.

Those ratings are the Sprinter’s case. On the 144-inch standard roof van, payload before conversion rises to 5,739 pounds on the 3500XD and 6,812 pounds on the 4500, room for a lift, tie-downs, a cot, and heavy power chairs. The trade is the floor. Driverge’s Sprinter wheelchair van uses a powered lift at the rear doors, with seats for nine and positions for up to two wheelchairs, and it offers four-wheel-drive versions for bad weather areas.

Floor height decides ramp or lift

A ramp has to meet federal slope limits, so the floor height sets how long it gets. Under 49 CFR 38.23(c), a ramp deployed to the ground can be no steeper than 1:4, and the least slope practicable is the goal. As an example, a 28-inch Sprinter floor at the steepest slope the rule allows would need a ramp reaching 112 inches out from the van, and riders would still face a 1:4 climb. That is why Driverge’s Sprinter build uses a lift, while the ProMaster’s lowered and kneeling floors carry ramps at 9.25 to 12.5 degrees.

Lifts have their own rules. The ADA vehicle rules set the minimum lift design load at 600 pounds. FMVSS No. 404 adds a weight line: once a bus or multipurpose passenger vehicle that has a lift is rated above 10,000 pounds, only a lift certified to the public use requirements of FMVSS No. 403 is allowed. On these chassis, that means the Sprinter 3500XD and 4500 and the 10,360 pound Transit minibus. The Sprinter 2500 and 3500 and the Transit and ProMaster minibuses rated at 9,250 pounds can take a lift certified to either class. The two lift classes and their labels are covered in the wheelchair van conversion guide.

Heavier ratings also carry the van into other federal rules once it crosses state lines for pay. The GVWR entry explains the labels, and the DOT inspection guide covers what a 10,001 pound rating brings.

Length, turning, and the 22-foot line

Length changes both the ADA rules and how the van drives. Under 49 CFR 38.23(a), a vehicle longer than 22 feet must carry two or more wheelchair securement locations, while one is enough at 22 feet or less. Past 22 feet the door and interior height minimums also rise, which mostly decides the roof; the high roof or medium roof guide works through those numbers.

Twenty-two feet is 264 inches. Here is where each body falls:

• Sprinter. The 144-inch van, at 234 inches, is under the line. The 170-inch van at 274 inches and the extended body at 290 inches are over it.
• Transit. Ford lists the extended-length body at 263.9 inches, a tenth of an inch under the line, and MobilityWorks Commercial rounds it to 264. Measure the finished van before you plan a single-position floor. The 148-inch van, at 235.5 to 237.6 inches, is under.
• ProMaster. The 159-inch 2500 at 236.2 inches stays under the line.

Turning space matters at tight pickups. Each maker publishes its own figure:

• Transit. Ford lists a curb-to-curb turning circle of 43.5 feet on the 130-inch wheelbase and 48.5 feet on the 148-inch.
• Sprinter. Mercedes-Benz lists 45 feet curb to curb for the 144-inch van and 52 to 53 feet for the 170-inch versions.
• ProMaster. Ram lists a 23.4-foot turning radius for the 159-inch 2500, which works out to a circle of about 47 feet.

Drive the van through your tightest regular pickup before you sign.

Upkeep: two warranties and two service networks

A converted van carries two sets of parts, so plan for two service paths. The chassis maker covers the van, and the converter covers what it installed. Driverge gives a 3-year warranty on the equipment it installs. MobilityWorks Commercial says its standard warranty covers the powertrain, the lift, and the mobility parts, and that it services vans at more than 90 locations staffed with NMEDA QAP certified technicians. Ask any dealer who handles a failed lift on a Saturday, and how far away the nearest shop is.

The lift sets the service rhythm more than the chassis does. BraunAbility recommends lift service every 750 cycles, counting each deploy and stow as one cycle, so a busy lift van reaches service on a schedule of its own. A kneeling ramp build has no lift to service, though the hydraulic kneel and the ramp still need regular checks.

Fuel separates the Sprinter from the other two. The 2026 ProMaster and the gas Transit run on regular gasoline, while the Sprinter runs on diesel unless you buy the electric eSprinter. EIA’s weekly survey for September 28, 2026 put diesel at $6.382 a gallon and regular at $4.465, a gap of $1.917. At those prices a diesel van must cover about 43 percent more miles per gallon before its fuel cost per mile drops to a gas van’s level. None of these cargo vans comes with an EPA mileage label, because EPA leaves any cargo van above 8,500 pounds GVWR out of its testing, and the lightest 2026 versions are rated at 8,550 pounds (ProMaster 1500), 8,670 (Transit), and 9,050 (Sprinter). Log your own fill-ups against the odometer, and use the vehicle maintenance guide to set service intervals for the rest of the van.

Matching each chassis to the right trips in HealthRide

Whichever body you buy, HealthRide stores each vehicle’s seat count and wheelchair positions and checks every trip’s wheelchair, stretcher, or oxygen need against them, so a four-position Transit and a two-position Sprinter get the trips they can carry. Drivers also check their van in the app before each shift starts, the moment to catch a sticky lift or a loose ramp hinge before the first pickup. See how vehicles are set up in fleet management.