CREATE TABLE "24_hours_of_le_mans_results" (
  "year" real,
  "team" text,
  "co_drivers" text,
  "class" text,
  "laps" real,
  "pos" text,
  "class_pos" text
);

Question: In what year did the team of aston martin racing have a position of 6th?
SQL: SELECT COUNT("year") FROM "24_hours_of_le_mans_results" WHERE "team"='aston martin racing' AND "pos"='6th';

Question: Which year did the team of pescarolo sport have a Class Position of 7th?
SQL: SELECT MAX("year") FROM "24_hours_of_le_mans_results" WHERE "team"='pescarolo sport' AND "class_pos"='7th';

Question: Who were the co-drivers of the vehicle that had both a Class position and position of 7th?
SQL: SELECT "co_drivers" FROM "24_hours_of_le_mans_results" WHERE "class_pos"='7th' AND "pos"='7th';