Claas has launched the Arion 4 Cmatic, a range of four tractors with power outputs up to 160hp and featuring Cmatic continuously variable transmission. The company claims the Arion 4 Cmatic is the ‘smallest large tractor’ in its range, powered by the latest-generation Cummins four-cylinder engine with a 4.5 l displacement, delivering up to 160 hp maximum power output and up to 646 Nm maximum torque. As with the larger Arion tractors, peak power and maximum torque are available across a wide rev range of around 500 rpm and are accessible even at low engine speeds from around 1,100 rpm.…