The Kiwi romped to a 4.6s win having only taken the lead of the 46-lap race – extended by six laps due to two safety car periods – for the first time just four laps from the end having started down in ninth.
Cassidy immediately went into energy conservation mode at the Tempelhof Airport circuit, which was using a new layout this year, and dropped towards the back of the field where he remained for much of the race.
