D'Ultra

D.U. Manufacturing Co. Ltd was based in Clapham, London, and produced the D. Ultra cyclecar, whose name presumably derived from "Dew Ultra." The company represented the second venture of Harold E. Dew, who had previously built the Dewcar before leaving that company in February 1914. Compared to the earlier Dewcar, the D. Ultra was a more sophisticated cyclecar design. It used a water-cooled Chater-Lea 8hp V-twin engine paired with a…