Back in 2012 Claas announced that it was updating the Arion 500 and 600 models, giving them a new look and cab more akin to those of the larger Axion models. At the same time the DPS four- and six-cylinder motors were fettled to meet Stage IIIB. To find out if Claas has finally shaken off the stigma of its Renault heritage we get the low-down from owners of the flagship in the Arion tractor range, the 129kW/175hp Arion 650