ART's Esteban Gutierrez was in a class apart in the first of this weekend's GP3 races at Istanbul Park, although the Mexican's win remains provisional due to an investigation into a possible jump-start.
Gutierrez capitalized on slow-starting polesitter Nigel Melker to lead into the first corner and he extended his lead with every lap, eventually crossing the line 10.5sec clear of closest rival James Jakes of Manor Racing.
Addax's Felipe Guimaraes had a fairly sedate drive to third, while ART's Alexander Rossi's fourth owed a lot to a nice move up the inside of Daniel Morad at Turn 2.
As was the case in Barcelona earlier in the month, it was a tough afternoon for some of the star qualifiers. Melker made an awful start and fell almost to the back of the field, the Mucke driver's misery being compounded by a drive-through penalty for starting out of position.
Second-row starter Dean Smith also made a poor getaway, but looked like he had recovered most of the lost ground with a strong final phase of the race, only to drop back through the field with a problem on the final lap. That left Morad, Jenzer's Nico Muller, Arden's Miki Monras and Manor's Rio Haryanto to complete the points.
The race was sprinkled with a few incidents, one of which accounted for Mucke's Renger van der Zande, who had worked his way up to 15th from the back of the grid before being involved in a clash with Mikael Aleshin. The latter was able to continue, only to be eliminated in a later shunt with Stefano Coletti.