MARTIN TRACTOR IS OFFERING THIS 2016 JOHN DEERE S680. SOME OF THE MAIN OPTIONS INCLUDED ON THIS COMBINE INCLUDES THE FOLLOWING: 2WD, PREMIUM CAB, AIR SEAT, PREMIUM RADIO, INTERACTIVE COMBINE ADJUST, EXTENDED WEAR, MULTI SPEED FEEDER HOUSE, PRO DRIVE TRANSMISSION, 26' UNLOAD AUGER, POWERCAST TAILBOARD, 520/85R42 DUALS, 750/65R26 REAR TIRES, MAURER BIN EXTENSION