The postwar Audi family derived from the DKW F102 carried the internal designation Audi F103.
The F103 was a series of front-wheel-drive cars produced by Auto Union in West Germany from 1965 to 1972. It used the DKW F102’s basic bodyshell and chassis, but replaced that car’s three-cylinder two-stroke engine with a four-cylinder four-stroke unit. That technical change was significant enough for Auto Union to revive the Audi name and retire the DKW badge for the series.
The first model was initially sold simply as the Audi before being renamed the Audi 72, reflecting its nominal power output in metric horsepower. The range later expanded to include the Audi 60, Audi 75, Audi 80 and Audi Super 90. These names identify individual versions, whereas F103 identifies the overall internal model family.
The F103 ended in 1972 when it was succeeded by the Audi 80 B1. Its longitudinal engine and front-wheel-drive layout also helped establish a configuration that influenced later Audi and Volkswagen products, including the Passat.