Woodward Avenue's connection to Detroit's automobile culture dates back to the early 20th century. Around 100 automobile companies were founded along the roadway. Henry Ford developed and first produced the Model T in 1907–08 at his Piquette Avenue Plant to the east of Woodward Avenue. The first 12,000 Model Ts were built there, before Ford moved production of his cars to the Highland Park plant adjacent to Woodward Avenue in 1910. Employees at the plant used the streetcar system along Woodward to get to work; these lines also provided transportation options to assembly plant workers affected by gas rationing during World War II. During the 1950s and 1960s, automobile engineers street tested their cars along Woodward Avenue between 8 Mile and Square Lake roads; the roadway was the only such location where this activity was practiced.