Indian Motocycle Manufacturing Company color options in 1934. Models of that era had Indian's famous war bonnet logo on the gas tank. Indian's huge Springfield factory was known as the Wigwam, and native American imagery was much used in advertising. In 1940, Indian sold nearly as many motorcycles as its major rival, Harley-Davidson. During this time, Indian also manufactured other products such as aircraft engines, bicycles, boat motors and air conditioners. The Indian Scout was built from 1920 through 1949. It rivaled the Chief as Indian's most important model. The Scout was introduced for 1920. Designed by Charles B. Franklin, the Scout had its
Harley-Davidson backed by the state and local government along with participating organizations and corporations. Paul Gotthold, Director of Operations for the EPA, congratulated the motor company: Harley-Davidson also purchased most of Castalloy, a South Australian producer of cast motorcycle wheels and hubs. The South Australian government has set forth "protection to the purchaser (Harley-Davidson) against environmental risks". In August 2016 Harley-Davidson settled with the EPA for $12 million, without admitting wrongdoing, over the sale of after-market "super tuners". Super tuners were devices, marketed for competition, which enabled increased performance of Harley-Davidson products. However, the devices also modified the emission control systems,