 Complete the following phrase:  Auto Union had factories both in West and East Germany, and by the 1960s, the company was renamed to Audi. In 1968 the company started producing the Audi 100 vehicles, which were similarly sized to the Sachsenring P240. Some Audi 100 were imported to East Germany by HQM Sachsenring GmbH as a replacement for the Sachsenring P240, albeit in limited numbers. Imports continued until 1986, when the company stopped importing the Audi 100 due to economical problems, but that ended with the 