Its different versions have been produced in 1965, is a very important BMW family car, although not for the company to bring huge wealth, it makes the company repay all the debt. </p><p>At the same time as the 700 series was introduced, developers found a need for a slightly larger car to cover the gap between the small 700 series and the large luxury car. But the company's decision-makers on which to produce the type of car is still controversial. At this point, the company is almost on the verge of collapse. In 1959, the big shareholders of BMW forced the company to accept the Daimler-Benz low-cost acquisition requirements, BMW sellers and small shareholders who resisted this request, the financier Herbert and Harald Quinte acquired BMW's massive stock, they demanded a production for the growing German middle class sedan. 700 series of success to the company to win the time to produce this car. It is in the autumn of 1961 at the Frankfurt Motor Show launched a new type of 1500 sedan. It has not been officially put into production, but BMW feels it should be exhibited to attract potential customers. In the appearance of the development of the car on the company invited the Italian designer Mitchell Lotti, the BMW's traditional double kidney grille installed in the new car. Chassis, body and mechanical devices are rushed to develop, 1500 finally catch up with the deadline, the car at the auto show was a great success, thousands of cars were ordered out, but immediately there are many large-scale production problem.