Tractor test: Fendt 415 Vario Extracting maximum horsepower from a four-pot tractor has been a popular manufacturer theme over the past few years, to the extent that 130hp+ is now relatively commonplace and 140hp not unusual. Right up near the top of this four-cylinder tree is the 103kW/140hp (ECE R24) Fendt 415 Vario, which reckons to max out at a thumping 114kW/150hp. The 415 is also the subject of this month’s profi tractor test