11 material differences · fewer than 12
Tractor oneLamborghini R-503 (DT)1973–1982No measured PTO figureTractor twoMassey Ferguson MF 2551975–1981No measured PTO figure
Which should you choose?
Read our verdict on the R-503 (DT) and the MF 255 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
11 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | R-503 (DT) | MF 255 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 46.5 hp | 46.4 hp | — |
| Engine declared | LAMBORGHINI FL-1003/1 | Perkins AD 3.152 S | differs |
| Displacement declared | 2.83 L | 2.50 L | +13% R-503 (DT) |
| Maximum torque declared | 118 lb·ft · 160 N·m | 131 lb·ft · 178 N·m | +11% MF 255 |
| Transmission | |||
| Top speed declared | 14.3 mph · 23 km/h | 15.5 mph · 25 km/h | +9% MF 255 |
| Clutch declared | Pedal-operated dry LuK double clutch type 11 inches | pedal-operated dry and air-cooled Auburn double clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 4.5 gpm · 17.0 L/min | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 3,836 lb · 1,740 kg | 5,159 lb · 2,340 kg | +34% MF 255 |
| Wheelbase declared | 75.6 in · 1,920 mm | 81.1 in · 2,060 mm | +7% MF 255 |
| Length declared | 126.4 in · 3,210 mm | 134.4 in · 3,415 mm | +6% MF 255 |
| Width declared | 63.0–90.6 in · 1,600–2,300 mm | 72.2 in · 1,835 mm | differs |
| Ground clearance declared | 16.1 in · 410 mm | 13.4 in · 340 mm | +21% R-503 (DT) |
| Turning radius, braked declared | — | 11.5 ft · 3.50 m | — |
| Fuel tank declared | 63.4 qt · 60.0 L | 50.7 qt · 48 L | +25% R-503 (DT) |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
Lamborghini R-503 (DT) sources
- Source: Traktorenlexikon, “Lamborghini R 503 DT”
Massey Ferguson MF 255 sources
- Source: Traktorenlexikon, “Massey Ferguson MF 255”