SELECT "Grid" FROM table_50661 WHERE "Time/Retired" = '+6.8359'
What is the grid with a +6.8359 time/retired?
CREATE TABLE table_50661 (
    "Fin. Pos" text,
    "Car No." text,
    "Driver" text,
    "Team" text,
    "Laps" text,
    "Time/Retired" text,
    "Grid" text,
    "Laps Led" text,
    "Points" text
)