Apollo was a German automobile marque based in Apolda, Thuringia, that emerged in 1911 out of the firm A. Ruppe & Sohn, which had existed since 1857 and had built agricultural machinery before becoming a car manufacturer in 1904 with its Piccolo model. The renamed Apollo-Werke AG continued under this identity until 1927. From 1910 to 1924 the company's chief engineer was Carl Slevogt, previously employed at the Austrian firm…
