. . . . "till 1933: 3-speed manual" . . "1933" . . "2.54" . . . "1.8 Liter" . . "3.8" . . . . "1.49" . . . . . . "Opel 1.8 Liter" . "1931" . . "from 1933: 4-speed manual" . . . . "Opel 1.8 Liter" . . . "1.48" . "No synchromesh" .