9 material differences · fewer than 12
Tractor oneFiat 45-Rfrom 1952No measured PTO figureTractor twoHürlimann D-100 Super-Spezial1957–1960No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1952–1952; 1957–1960). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
9 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | 45-R | D-100 Super-Spezial | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 44.4 hp | 44.4 hp | — |
| Engine declared | O.M.-FIAT CO 1D-45/Var. 10 | Hürlimann D-100 | differs |
| Displacement declared | 4.16 L | 4.02 L | — |
| Maximum torque declared | 167 lb·ft · 226 N·m | 151 lb·ft · 205 N·m | +10% 45-R |
| Transmission | |||
| Top speed declared | 9.9 mph · 16 km/h | 12.4 mph · 20 km/h | +25% D-100 Super-Spezial |
| Clutch declared | Pedal-operated dry single-plate clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 5.3 gpm · 20.0 L/min | — | — |
| Pressure declared | — | 640 psi · 44 bar | — |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 5,071 lb · 2,300 kg | 4,233 lb · 1,920 kg | +20% 45-R |
| Wheelbase declared | 74.8 in · 1,900 mm | 79.9 in · 2,030 mm | +7% D-100 Super-Spezial |
| Length declared | 116.3 in · 2,955 mm | 125.2 in · 3,180 mm | +8% D-100 Super-Spezial |
| Width declared | 60.4–91.9 in · 1,535–2,335 mm | 68.9 in · 1,750 mm | differs |
| Ground clearance declared | 15.7 in · 400 mm | — | — |
| Turning radius, braked declared | 10.8 ft · 3.30 m | 9.0 ft · 2.75 m | +20% 45-R |
| Fuel tank declared | 53.9 qt · 51.0 L | 47.6 qt · 45 L | +13% 45-R |
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.
Fiat 45-R sources
- Source: Traktorenlexikon, “Fiat 45 R”
Hürlimann D-100 Super-Spezial sources
- Source: Traktorenlexikon, “Hürlimann D 100 SSP”
- Source: Traktorenlexikon, “Hürlimann D 100”