Question: What is the date of the Mosport Park circuit?
SQL: SELECT "Date" FROM "2-13655126-1" WHERE "Circuit" = 'Mosport Park';

Question: What is the length of the Laguna Seca Raceway circuit with a class of GTU?
SQL: SELECT "Length" FROM "2-13655126-1" WHERE "Circuit" = 'Laguna Seca Raceway' AND "Class" = 'GTU';

Question: What is the class of the Charlotte Camel GT 500 race?
SQL: SELECT "Class" FROM "2-13655126-1" WHERE "Race" = 'Charlotte Camel GT 500';

Question: What is the length of the race on August 15?
SQL: SELECT "Length" FROM "2-13655126-1" WHERE "Date" = 'August 15';