Germany fears a "dangerous dependence" on China if Beijing-based BAIC is allowed to take over Opel, German media said on Monday, citing an expert government report.

"The Chinese government clearly wants to gain access to modern technology," Berlin's report said, according to the website of mass circulation daily Bild, news agency AFP reported.

There was a danger that the German carmaker "could become dangerously dependent on the Chinese state," the report added.