The BMW 340, subsequently rebadged as the EMW 340, was a large six-cylinder four-door passenger saloon produced at Eisenach initially in the name of BMW. Five-door 340 station wagons were also manufactured. It was described in 1948 as the first new car model produced in Germany after the war: despite new body panels, under the skin it was a modified version of the BMW 326 with which it shared its engine and wheelbase, and which had originally been commercialised in 1936. The 326 had nevertheless been an innovative and well regarded product and the 340, which incorporated several improvements, was seen as a desirable car well into the 1950s. Early years were dogged by disputes centred on ownership of the plant where it was assembled and its manufacturers’ rights to use the BMW name. The cars later appeared badged as EMW 340s, and it was under this name that 340s continued to be sold until at least 1953.

A coupé version, originally launched in 1937 as the BMW 327, was also reintroduced after the war and produced in parallel with the 340 until approximately 1955, badged in its final years as the EMW 327.