The Carraro tractors are great for demanding undulating/hillside work ( especially with dual wheels all round) & excell in orchards/vineyards because of their low profile - overall they have the agility of a mountain goat.
The compromise with these compact Italian hillside tractors ( Carraro/Valpadana/Pasquali) is whilst they handle PTO rotary implements (tillers, mowers etc.) & spray/trailer work well, any demanding 3PL drawn implement like a chisel or disc plough, ripper, grader will place considerably greater stress on the these tractors (as will a FEL in heavy applications ) causing failure/fracturing/weakening of the articulation joints/axle castings/mounts - being a compact tractor there are also other compromises..
We have previously run both a c.70hp Valpadana (pictured) & a Carraro for weed control in hilly country.
In summary special purpose tractors which will accommplish some tasks other tractors can't, but not overall as versatile/rugged as a 2WD or FWA.
Why are you considering a Carraro, do you have a specialised application for a hillside tractor?