brought out a second car for the final two rounds of the season. Australian David Besnard drove the car at Surfer's Paradise. Toyota Atlantic veteran Michael Valiante took over the drive at Mexico City. Dale Coyne Racing replaced Gastón Mazzacane with Jarek Janiš for the race at Surfer's Paradise. Tarso Marques returned to Dale Coyne Racing for the final race of the season at Mexico City. Rule changes The mandatory pit window rule from the previous two seasons was eliminated. At early races, teams were given a mandatory number of green flag pit stops but this was also dropped after the first two races of the season. However, the rule was re-instituted for the Las Vegas round to eliminate a possible fuel economy race with no push to pass. For non-oval track races, Bridgestone introduced two types of tires, both of which had to be used unless wet weather tires were used: A primary black-walled tire and a secondary red-walled option tire. The option tire was a softer, faster tire but less durable than the primary tire. For non-oval track races, Ford-Cosworth introduced the "push to pass" button, giving each driver an additional 50 horsepower for 60 seconds per race. The driver activated the function with a green button on the steering wheel, the boost would continue until the driver took his foot off the throttle for 1 second or time ran out. Season summary Schedule Oval/Speedway Dedicated road course Temporary street circuit The initial schedule announced by Champ Car at the Long Beach Season Premiere event included 16 races. One event that didn't make the final schedule was a race on a street circuit in Seoul, South Korea on October 17, a week before the Surfers Paradise race, but the race was cancelled on September 24 because of "environmental issues", two months after reports that government approval for a race near Seoul World Cup Stadium could not be arranged in time. The second was a "TBA" event that was scheduled to take place somewhere in the United States after the Gran Premio Telmex/Tecate in Mexico City and never materialized. A second TBA event on the initial schedule became the Bridgestone 400 on September 25 at the Las Vegas Motor Speedway, which was announced on July 7. Race results Final driver standings Nation's Cup Top result per race counts towards the Nation's Cup Chassis Constructor's Cup Driver breakdown Notes References