DTM debutant Nico Muller kept Audi at the top of the timesheets after the second day of running at the Hungaroring.
Muller's 1 minute 37.505 second lap was the quickest lap of the week so far, putting him two-tenths ahead of Miguel Molina's best lap yesterday.
“I'm virtually over the moon. This was a great first day at Audi and in DTM,” said Muller.
“To have the chance of driving the Audi RS 5 DTM here in Hungary is a true highlight. It was particularly important for me to see that I felt really good in the team and in the car right from the start.”
DTM veteran Mattias Ekstrom ensured Audi locked the front two positions but was nearly four-tenths off the young Swiss drivers pace.
Mercedes duo Gary Paffett and DTM returnee Paul di Resta finished the day third and fourth in their C-Class Coupes.
Marco Wittmann was the first of a four-car BMW freight train in fifth followed by Antonio Felix da Costa, Joey Hand and Bruno Spengler completing the top eight.
DTM rookie da Costa had initially set the early day two pace, spending the first half of the session top of the pile.
Vitaly Petrov's Mercedes and Edoardo Mortara's Audi rounded out the top ten over a second off the front-runners pace.
2008 and 09 DTM champion Timo Scheider officially began his second stint in Phoenix colours eleventh.