The track is approximately 1.75 miles (2.82 km) long. The layout of the track is designed to put the car through various conditions, ranging from provoking understeer to testing brake balance and tyres. The track's main route, marked by painted lines and simple structures such as stacks of tyres, was designed by test drivers from Lotus.
The track is on a former Royal Canadian Air Force airbase constructed during the Second World War and later used by British Aerospace as a manufacturing and test facility. It is used to test both cars and drivers seen on the program, mainly in Power Laps and Star in a Reasonably Priced Car.
The track was designed by Lotus Cars as a testing facility for the Colin Chapman run company, with many of its Formula One cars tested there. It is located at Dunsfold Aerodrome in Surrey, United Kingdom. The Top Gear test track is used by the BBC automotive television program Top Gear.
