2011 Autobacs Super GT Series was the 18th season of the Japan Automobile Federation Super GT Championship . It is a series for Grand Touring race cars divided into two categories : GT500 and GT300 . The season began on May 1 and ended on November 13 , 2011 after 8 races and 1 non-championship race . The season was due to start on April 2 , but the 2011 Tōhoku earthquake and tsunami caused its postponement
2011 Tōhoku earthquake and tsunami
2011 Tōhoku earthquake and tsunami
2011 Super GT Series