Chrysler Proving Grounds

It was owned and operated by Ford Motor Company based in Dearborn, Michigan, until Chrysler LLC announced on November 2, 2007 that it had purchased the facility for $34.9 million.

The field was declared surplus land by 1946 and the ownership was turned over to Ford in 1954.

Harley-Davidson currently occupies several buildings at the test facility, including at least one they custom built.

[1] Arizona Proving Ground has more than 50 miles (80 km) of concrete and earthen surfaces on 3,840 acres (15.5 km2) that are continuously maintained.

It includes a five-mile (8 km) high speed banked oval track, with a myriad of other road testing surfaces.