Miguel Molina topped the first day of DTM testing at the Hungaroring circuit as the 2014 pre-season kicked off officially on Monday.
A total of 11 cars from the three manufacturers competing in the series were in action at the Hungarian track for the test, a month away from the first race of the season.
Molina set the benchmark with a best time of 1m37.792s in the Audi RS 5 as the manufacturer locked out the top four positions.
"It's just great to be back behind the wheel, after the long off-season," said Molina. "Audi Sport did a great job developing the new Audi RS 5 DTM: the new car feels great right from the start and the Hungaroring seems to suit it well."
Molina was followed by Jamie Green, Adrian Tambay and reigning champion Mike Rockenfeller, who finished over a second behind the Spanish driver.
Bruno Spengler was the quickest of the non-Audi driver in fifth for BMW.
Ex-Formula 1 driver Paul di Resta was fastest of the Mercedes drivers, but the Scot was down in ninth position as the Stuttgart marque finished at the bottom of the times with its three drivers.
DTM rookie Vitaly Petrov was slowest, three tenths of a second behind Briton Gary Paffett.
Maxime Martin was the quickest of the newcomers in sixth, while fellow rookie Antonio Felix da Costa was seventh in the Red Bull-backed BMW M4.
The session was shorter than scheduled because of problems with the track surface, which meant teams had to call it a day two hours earlier than planned.
Teams will be allowed an extra hour of running on both Tuesday and Wednesday to make up for the issue.
Pos Driver Team/Car Time Gap 1. Miguel Molina Abt Audi 1m37.792s 2. Jamie Green Rosberg Audi 1m38.200s +0.408s 3. Adrien Tambay Abt Audi 1m38.518s +0.726s 4. Mike Rockenfeller Phoenix Audi 1m38.842s +1.050s 5. Bruno Spengler Schnitzer BMW 1m39.242s +1.450s 6. Maxime Martin RMG BMW 1m39.549s +1.757s 7. Antonio Felix da Costa MTEK BMW 1m39.666s +1.874s 8. Joey Hand RBM BMW 1m39.679s +1.887s 9. Paul di Resta HWA Mercedes 1m40.383s +2.591s 10. Gary Paffett HWA Mercedes 1m40.434s +2.642s 11. Vitaly Petrov HWA Mercedes 1m40.741s +2.949s