Opel built the KAD series B from 1969 to 1977. KAD stands for Kapitän, Admiral and Diplomat, the individual models of the luxury class series. In the B models, Opel had made full technical use of the De Dion rear axle and the fuel injection system for the six-cylinder engine. In any case, the magazine 'hobby' was impressed by the improved top models from Rüsselsheim. This article reproduces the original wording of the test report at the time and shows the models in historical illustrations.