Pato O’Ward led an eventful opening practice Friday for the Chevrolet Detroit Grand Prix presented by Lear, as drivers spent as much time learning the new downtown street circuit as they did paying attention to the time sheets. 5 Arrow McLaren Chevrolet on the nine-turn, 1.7-mile circuit in downtown Detroit. “It was a big challenge,” Palou said of the bumpy circuit. Arrow McLaren drivers took the next two spots, as the team claimed three of the top six positions on the time sheet. 6 onsemi Arrow McLaren Chevrolet, followed by Alexander Rossi in sixth at 1:03.7277 in the No. Even the quickest driver of the session – O’Ward – triggered the sixth and final red when he entered the runoff area in Turn 8 near the end of the session. “It’s a challenging track; I can tell you that,” O’Ward said.

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