non-championship Race of Two Worlds. Also, in 1966 there was a non-championship USAC race at Fuji Speedway in Japan. The first championship events outside the U.S. took place in 1967 at Mosport and Saint-Jovite in Canada. In 1971, the USAC season-opening race was held at Rafaela. In the autumn of 1978, two races were held in England, the first at Silverstone, then a week later at Brands Hatch. Beginning in the mid-1980s, CART expanded throughout North America, venturing into Mexico (Mexico City) and Canada (Sanair, Toronto and Vancouver). In the 1990s and early 2000s, international expansion reached overseas with events at Surfer's Paradise, Rio de Janeiro, Motegi, Lausitz, and Rockingham. Towards the end of its run, Champ Car ran races at European tracks such as TT Circuit Assen and Zolder Circuit, intentionally scheduled in regions and dates that would not compete with Formula One. Trophies and awards Astor Cup In 2011 IndyCar revived the Astor Cup, first awarded in 1915 as the series championship trophy. A black granite base has been added displaying the names of all the American Championship car racing series winners since 1909. Vanderbilt Cup The 1916, 1936 and 1937 Vanderbilt Cup races were included in the national championship. The 1909–1915 races were retrospectively added to the championship in 1926. CART resurrected the Cup in 1996 as the winner's trophy for the US500 race. When that race was discontinued in 2000, the Cup changed roles and became the championship trophy. Champ Car retained the rights to use the trophy after CART's bankruptcy, but use of the trophy was discontinued after Champ Car's merger with the Indy Racing League. Indianapolis 500 as part of the national championship From its inception in 1911, the Indianapolis 500 has been considered the marquee event of Championship/Indy car racing. The race has been held every year from 1911, with the exception of 1917-1918 (World War I) and 1942-1945 (World War II). The Indianapolis 500 has been part of an official national championship in 1916, 1920–1941, and since 1946. In the years from 1911 to 1915, as well as 1919, the race was held as a formally sanctioned event, but an official national championship was not recognized in those years. Therefore, those six editions of the race were not attached to an officially recognized national championship. Winning the Indianapolis 500 has frequently been considered at near or equal profile to winning the national