9 material differences · fewer than 12
Tractor oneLamborghini R-955 (DT)1979–1985No measured PTO figureTractor twoRenault 921-41977–1980No measured PTO figure
Which should you choose?
Read our verdict on the R-955 (DT) and the 921-4 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
9 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | R-955 (DT) | 921-4 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 90.8 hp | 90.8 hp | — |
| Engine declared | SAME 1055-P | MWM D 227-6 | differs |
| Displacement declared | 5.20 L | 5.66 L | +9% 921-4 |
| Maximum torque declared | 260 lb·ft · 353 N·m | 249 lb·ft · 337 N·m | — |
| Transmission | |||
| Top speed declared | 15.5–18.6 mph · 25–30 km/h | 15.5 mph · 25 km/h | differs |
| Clutch declared | Dry VALEO double clutch | Dry LuK double clutch type 310/310 G | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 8.6 gpm · 32.6 L/min | — |
| Pressure declared | — | 2,321 psi · 160 bar | — |
| Rear PTO speeds declared | 540/1000 rpm | 540/1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 7,496 lb · 3,400 kg | 10,847 lb · 4,920 kg | +45% 921-4 |
| Maximum permissible mass declared | — | 17,637 lb · 8,000 kg | — |
| Wheelbase declared | 102.4 in · 2,600 mm | 105.6 in · 2,683 mm | — |
| Length declared | 159.6 in · 4,055 mm | 174.9 in · 4,442 mm | +10% 921-4 |
| Width declared | 66.1–80.7 in · 1,680–2,050 mm | 77.2 in · 1,960 mm | differs |
| Ground clearance declared | 23.6 in · 600 mm | 16.9 in · 430 mm | +40% R-955 (DT) |
| Turning radius, braked declared | — | 15.6 ft · 4.75 m | — |
| Fuel tank declared | 116.2 qt · 110.0 L | 216.6 qt · 205.0 L | +86% 921-4 |
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-955 (DT) sources
- Source: Traktorenlexikon, “Lamborghini 955 DT”
Renault 921-4 sources
- Source: Traktorenlexikon, “Renault 921-4 R7684”
- Source: Traktorenlexikon, “Renault 891 R7681”