CREATE TABLE table_8491 ("Name" CLOB, "Team" CLOB, "Laps" FLOAT, "Time/Retired" CLOB, "Grid" FLOAT, "Points" FLOAT)

When did grid 8 finish?
SELECT "Time/Retired" FROM table_8491 WHERE "Grid" = '8'
SELECT "Time/Retired" FROM "table_8491" WHERE "Grid" = '8'