9 material differences · fewer than 12

Tractor oneLamborghini R-1056 (DT)1977–1984No measured PTO figureTractor twoVALMET 905-41984–1989No measured PTO figure

Which should you choose?

Read our verdict on the R-1056 (DT) and the 905-4 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.

9 material differences · 4 fields identical or within 5%, which is not counted as material

Lamborghini R-1056 (DT) and VALMET 905-4, field by field
Field	R-1056 (DT)	905-4	Gap
Engine
Engine power, claimed claimed	103.5 hp	103.5 hp	—
Engine declared	SAME DA 986-3 or 916-6 W	VALMET D 66 DS 9	differs
Displacement declared	—	6.60 L	—
Maximum torque declared	251 lb·ft · 340 N·m	291 lb·ft · 395 N·m	+16% 905-4
Transmission
Top speed declared	15.5 mph · 25 km/h	18.6 mph · 30 km/h	+20% 905-4
Clutch declared	—	Pedal-operated dry LuK single-plate clutch	—
Hydraulics & hitch
Pump flow declared	12.7 gpm · 48.0 L/min	12.5 gpm · 47.5 L/min	—
Pressure declared	—	3,191 psi · 220 bar	—
Rear PTO speeds declared	540/1000 rpm	540/1000 rpm	—
Weight & dimensions
Unladen weight declared	8,664 lb · 3,930 kg	9,105 lb · 4,130 kg	—
Wheelbase declared	107.3 in · 2,725 mm	100.8 in · 2,560 mm	+6% R-1056 (DT)
Length declared	178.0 in · 4,520 mm	200.8 in · 5,100 mm	+13% 905-4
Width declared	88.6–104.3 in · 2,250–2,650 mm	84.3 in · 2,140 mm	differs
Height, over the cab declared	114.2 in · 2,900 mm	106.5 in · 2,705 mm	+7% R-1056 (DT)
Ground clearance declared	21.3 in · 540 mm	18.7 in · 475 mm	+14% R-1056 (DT)
Turning radius, braked declared	—	17.2 ft · 5.25 m	—
Fuel tank declared	126.8 qt · 120.0 L	190.2 qt · 180.0 L	+50% 905-4

Source

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