Antonio Brivio had an offer from Auto Union for 1936.
Auto Union was also interested in Caracciola for 1934.
The Auto Union drivers also don't want Nuvolari at Auto Union for 1935
Seaman was in talks with Auto Union for 1937
Mercedes wanted to run Gottfried Köchert before the war was starting...
Varzi was in talks with Scuderia Subalpina for 1935.
Are there more?