Opel 10/40 PS

The Opel 10/40 PS is a luxury car manufactured by Opel. The car was introduced in May 1925 as the Opel 10/50 PS, but by the time production got underway in July 1925 it had become the Opel 10/45 PS, and it very soon thereafter became the Opel 10/40 PS, a name which it retained throughout the rest of a production run which lasted until November 1929. The name followed the widely used German naming convention of the time, whereby the first digit, here 10, represented the engine's tax horsepower, the Steuer-PS.