Versatile 1080 The Versatile 1080 (known as Big Roy) was built in the late 1970s as a prototype. It weighed 26 tons, and came with a 600 hp, V-12 19-litre Cummins engine and eight-wheel-drive on four axles. A 2100 litre fuel tank was in the front section. Due to its large size, 120-degree wide angle television cameras were linked to monitors in the cab, in order to allow the farmer to view the implements hooked behind. Fuel consumption? At the time, there were no implements big enough to challenge its pulling power, so no accurate tests were ever done. Soaring development costs and a small market for the huge tractor forced cancellation of production, but Big Roy is still on display at the Manitoba Agricultural Museum in Austin, Manitoba, Canada. Big Bud 16V-747 As of 2022, Big Bud 16V-747 is the world’s largest farm tractor still being used. The largest of all the 'Big Buds' built to this day, the Big Bud 16V-747 custom-made farm tractor was constructed in 1977, in Havre, Montana and is famous across the globe thanks to its amazing features: it weighs around 50 tons, twice the size of many of the largest production tractors in the world. It has a 1,000 gallon (3.8 m³) fuel tank, and delivers up to 1,100 hp to do all the necessary hard work on the roughest fields. The tractor was built by Ron Harmon and the crew of the Northern Manufacturing Company and it featured a 16-cylinder Detroit Diesel engine that produced 760 horsepower. It was originally designed for the Rossi Brothers, cotton farmers in Bakersfield, California, who used the tractor for deep ripping for 11 years. The second owners, Willowbrook Farms, also used the tractor for deep ripping purposes. Today, Big Bud 16V-747 can be seen in Montana, only 60 miles from where it was originally manufactured. It is owned by the Williams Brothers that purchased it in 1997 and brought it to their farm, where they still use it for cultivation purposes. Extreme Machines