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American Simplex

Defunct American motor vehicle manufacturer

The American Simplex was an American automobile manufactured in Mishawaka, Indiana, 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. Originally the company manufactured a two-stroke four-cylinder 50hp at 900 rpm from 6435 cc with 127 mm bore and 127 mm, later upsized to 6.8 liters and still rated at 50 hp.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1906Founded1
  • HeadquartersMishawaka1

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1906 American Simplex Touring Car
Photo: The Horseless Age, Public domain, via Wikimedia Commons3

The American Simplex was an American automobile manufactured in Mishawaka, Indiana, 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. Originally the company manufactured a two-stroke four-cylinder 50hp at 900 rpm from 6435 cc with 127 mm bore and 127 mm, later upsized to 6.8 liters and still rated at 50 hp.2

Timeline

  1. 1917Dissolved Dissolved1
  2. 1906Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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