The 4-seater convertible was also equipped with the six-cylinder inline engine (M78a or M303). The output of 30 hp accelerated the car to a top speed of 90 km/h. By comparison with the sporty 2-seater convertible that was only produced for some six months and therefore had an extremely low production run, 542 units of the 4-seater convertible were produced from April 1933 to April 1934.