Race fans are invited to enjoy Indy cars on track at a free test session at Sonoma Raceway on Thursday, Sept. 6, just one week prior to the Grand Prix of Sonoma race weekend, Sept. 14-16.

            Racing teams from the Verizon IndyCar® Series include Team Penske, Rahal Letterman Lanigan Racing and Harding Racing. The test session is FREE to race fans and will run from 9 a.m.-5 p.m. on the 2.385-mile, 12-turn road course. Race fans can watch the race cars from open seating areas and can grab lunch at the Raceway Café. Tickets for the Grand Prix of Sonoma will be available for purchase.

The INDYCAR Grand Prix of Sonoma season finale returns to Sonoma Raceway, Sept. 14-16. The event will mark the 14th consecutive Verizon IndyCar Series event in wine country, and the fourth time the event will crown the series' champion. It will also mark the last INDYCAR event in Sonoma for the foreseeable future, as the series shifts its schedule for the 2019 season.

Tickets are still available, including the Total Access Package, which includes a reserved-seat ticket and a garage/pit/pre-race pass for $99.  Kids 12 and under are admitted FREE all weekend and parking is FREE all weekend. For more information, visit sonomaraceway.com/indycar or call 800-870-7223.