Rockenfeller leads Audi top six in wet FP2
Mike Rockenfeller topped the second free practice session at a wet Hockenheim ahead of five of his Audi team-mates.
Rockenfeller was the only driver to break under 1m37, with a 1m20 being the best lap set on Friday in the dry by Bruno Spengler.
Timo Scheider was second fastest just one thousandth of a second slower, with Martin Tomczyk third.
Gary Paffett was the fastest non-Audi, exactly one second down on Rockenfeller in his Mercedes-Benz C-Klasse.