is locked in a bitter dispute with his wife Cora, as the couple head towards divorce.
The German-language magazine Closer reports that the 39-year-old younger brother of F1 legend Michael, and his wife Cora are now communicating only through lawyers.
Bild newspaper said they are fighting over former Williams
driver Ralf's EUR 100 million fortune, their homes in Germany, Austria and France, and their 13-year-old son David. (GMM)