INDYCAR Grand Prix of Sonoma from Sonoma Raceway – 2018 – Steve’s Preview
By Steve Wittich The 2018 INDYCAR Grand Prix Of Sonoma will be the 14th year in a row (and 15th overall race) that the Verizon IndyCar Series will visit California Wine Country, and the 2018 event will mark the fourth straight year that the Astor Cup will be presented at the former Sears Point Raceway….