– Public Admission is $10 or FREE with proof of advance ticket purchase to the Verizon IndyCar Series Kohler Grand Prix scheduled for June 25 –    Credit: Randy Erdman   ELKHART LAKE, Wis., June 13, 2017  – Preparations for Verizon IndyCar Kohler Grand Prix will begin in earnest during a Verizon IndyCar Series Test Session on the…

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