The Siemens-Halske Electric Company was listed as a manufacturer of automobiles in the 1900 publication "Horseless Vehicles, Automobiles, Motor Cycles" by Hiscox. The company did produce a car during this period, though it was marketed under the name Illinois Electric rather than under the Siemens-Halske name. For further details on this vehicle, reference should be made to the Illinois Electric marque, under which the car was actually sold.