Marciello on pole, Rosenqvist and Lynn 2nd and 3rd respectively.
The 20-year-old from Estonia went on to post the quickest time in session two and was then ninth quickest in the first of the two qualifying runs.
Tom Blomqvist was able to bring his car home in eighth place.
The vice European champion Felix Rosenqvist secured the second position behind Alex Lynn in the race on the 6.12 km long city course.
The 2013 season has seen John Bryant-Meisner return to racing following recuperation from a career-threatening crash during testing in 2012.
Team-mate Jordan King also improved on his position from qualifying, working his way up into seventh place.