Driving impression: Landini Powerfarm DT105 tractor The economy livestock tractor sector has become hotly contested of late, with New Holland’s TDD and its Case IH JXU sibling, MF’s 4400 and its Valtra A cousin and Zetor’s Proxima all vying for business, to name a few. Martin Rickatson drives Landini’s newest offering in the sub-100hp class