Tractors are mostly used on farms. They usually move slowly like old men. But Fastrac from the UK is a bit different. It is the fastest tractor in the world. It can run at a top speed (速度) of 135 miles (216 km) per hour. That’s even faster than a car. Engineers (工程师) changed the tractor and gave it a stronger engine (引擎). The engine gives off 1,000 horsepower. Fastrac also has a parachute (降落伞) to help it stop.