Starting second on the grid, Team Bernhard 75 driver Preining avoided the carnage around him to win by 3.67s as SSR Performance stablemate Olsen capitalised on a penultimate lap error from Rene Rast to snatch second.
Three-time DTM champion Rast, who had briefly led the race, finished third ahead of Laurens Vanthoor in the second SSR Porsche, while Philipp Eng (Schubert BMW) and defending champion Max Gotz (Winward Mercedes) completed the top six after an eventful race in which several contenders fell by the wayside.
