A powerful look at one of the world’s largest tractors as it tackles the field with unmatched force and scale.

With impressive understatement the John Deere website refers to its 9RX range of agricultural machinery as "high-horsepower tractors". We always like it when the Christmas road test has a unique claim ...

Dec. 29—Smoke billows from the stack of the steam-powered tractor as it chugs along, sounding like a train locomotive. At a top speed of just under 6 mph, the 150 Case Road Locomotive moves ...