American Automotive manufacturer Detroit, Michigan.USA From 1902 to 1904.
The Hammer-Sommer was an automobile built in Detroit, Michigan by the Hammer-Sommer Auto Carriage Company Ltd. from 1902 to 1904.
The Hammer-Sommer came only as a five-seater,with passengers sitting in front of the driver as a detachable tonneau model. The vehicle came equipped with a 12 hp opposed two-cylinder engine, mounted beneath the body, and had a planetary transmission. The company claimed the vehicle would reach 35 mph (56 km/h).
The company was eventually split separately into the Hammer and Sommers companies. see listings.