The Atlas car was built in Springfield, Massachusetts from 1907-1911 (and became the Atlas-Knight for 1912–1913).After Harry Knox left the company that had been building Knox cars in Springfield, he established the Knox Motor Truck Company in 1905 to produce Atlas commercial vehicles. His former partners at his previous firm took him to court over the name. After he was forbidden from using the Knox name, he formed the Atlas Motor Car Company in late 1907.