The appealing, simple form of the "original Mini" from 1959 continued to live on in the design of the new basic model Mini 850. Equipment was restricted to essentials, the familiar 848 cc Series-A engine generating 34 b.h.p. at 5500 rpm enabled the successful small car to achieve respectable performances. The new version with the internal designation ADO 20 was launched in October 1969 and the exterior was distinguished by door hinges now positioned in the interior and new wind-up windows. When production of the 850 Series model came to an end in August 1980, the 848 cc power unit was finally discontinued in the Mini saloon.