Mattias Ekstrom has halted BMW's reign of dominance over the Hockenheim pre-season test after setting the pace during the third day of testing for Audi.
BMW had enjoyed a two day stranglehold over the only official pre-season test thanks to Augusto Farfus and Tom Blomqvist stealing a march on proceedings around the German Grand Prix venue.
But, despite having to contend with wet track conditions during the morning, Ekstrom became the first driver to dip under 1 minute 33 barrier - putting the Abt driver almost 0.2's of Mercedes' Daniel Juncadella in second.
Team Schnitzer's Martin Tomczyk was the fastest BMW runner of the day in third position, just 0.026's up the road from Audi's Timo Scheider in fourth.
Miguel Molina completed the top-five for aboard his Team Abt RS 5, marginally ahead of ART Grand Prix's Gary Paffett, who was completing his first mileage of the test for Mercedes.
Behind the Brit, came the days most productive driver, in shape of 2014 DTM champion Marco Wittmann. The RMG driver completed 129 laps, six more than the next best haul assembled by the Mercedes C63 of Juncadella.
Bruno Spengler was the final BMW to make the top-ten order, with Audi's Adrien Tambay and Nico Muller following the Canadian in ninth and tenth.
HWA's Paul di Resta completed his first laps of the Hockenheim test, setting a time good enough for 12th, almost 0.8's shy of Ekstrom's front running pace.