The Kiwi led a Jaguar Racing 1-2 at the Tempelhof Airport Street Circuit after team-mate Sam Bird made a last-lap overtake on polesitter Sebastien Buemi.
While Bird also started on the front-row, Evans missed out on the qualifying duels and started down in ninth but made steady progress in the 43-lap contest which included leading briefly at the midway point of the race.
With drivers attempting to save as much energy as possible in the slipstream it meant the race featured a high number of overtakes which included eight different leaders and a change for the lead 23 times in total – both a new championship record.
Evans, who decisively jumped to the head of the field with four laps remaining after a late dive to the inside of Buemi at Turn 1, believes avoiding cars lifting off into the braking zones was tricky to manage.
“I knew if you started in the top 10 you were still within shot of a good result as we’ve seen in the past few races,” he said.
“I knew it was going to be chaos but that was on another level. To navigate yourself through some of the slow [cars], people backing up in front of you.
Source: Autosport