American Automotive manufacturer Mishawaka, Indiana, USA From 1906 to 1910
Billed as "a motor-car symphony", the American Simplex was an American automobile manufactured in Mishawaka, Indiana, United States, from 1906 to 1915 by the Simplex Motor Car Company; the company shortened its product's name to Amplex in 1910 to avoid confusion with the better-known, New York-based Simplex car, made by the Simplex Automobile Company. This change also coincided with a reorganization of the company.
American Simplex 7 seat limousine from 1910
Originally the company manufactured a two-stroke four-cylinder 40hp model, later upsized to 6.8 liters and rated at 50 hp.features 20 gallon fuel tank,whee base 117 inch,wheels 36 inch with tyres 36x4 front 36x5 rear.Body was of aluminium. options included fold down front screen and trunk luggage set mountings
In 1910, three open-roof models and two enclosed models were offered, costing up to $5,400; the newly introduced 30/50 hp Toy Tonneau, a long, sleek four-door touring car, sold for $4,300. The Amplex's most distinctive feature was its valveless motor, which the company claimed would offer more continuous pulling power and greater reliability. The 1910 models also offered self-starting, a feature that would not be available from major competitors, such as Cadillac, for another year or two.
The American Simplex Amplex Toy Tonneau from 1912
They were expensive cars - large, luxurious and handsomely designed, a limousine being offered at as much as $5,600. Yet the firm kept using the two-stroke engine after it had become obsolete; a four-stroke was offered unsuccessfully in 1913. Gillette Motor Co took over the Amplex manufacturing facilities in 1916, but refused to manufacture conventional engine-valving, persisting with a rotary sleeve valve engine.