Verizon IndyCar Series OF NOTE: The Firestone Grand Prix of St. Petersburg will mark the 250th Indy car race Andretti Autosport has competed in. Marco Andretti will wear the blue, green and white of Ruoff Home Mortgage to kick off the 2018 season. Rookie Zach Veach will make his full-season debut in the Verizon IndyCar Series. Veach…