Fiat’s Roof Top Test Track

Completed in 1923, Fiat’s Lingotto factory was unlike any other automobile factory to date. It featured a spiral assembly line that moved up through the building, and a concrete banked rooftop test track. With an upward assembly line, production began at the bottom floor and progressed upward until completion. When a Fiat finished its climb through 16,000,000 square feet, it exited at the roof and was raced around the track by employees. If the car was satisfactory, it would return down to ground level through one of the two spiral access ramps at either end of the test track.