The Rosengart LR4 debuted in 1931, and was essentially a modified version of the previous LR2. It heavily differentiated from its Austin origins, and the model’s robust character was demonstrated by several long distance trials. Variations on this model would survive until the 1950s, always retaining the original short 2,200 mm (86.6 in) wheelbase. A further substantial upgrade of Rosengart’s small car took place in 1938 with the appearance of the Rosengart LR42N 4CV.