CREATE TABLE table_6436 ("Year" FLOAT, "Class" TEXT, "Vehicle" TEXT, "Position" TEXT, "Stages won" TEXT)

What year did he compete in the car class and win 0 stages?
SELECT "Year" FROM table_6436 WHERE "Class" = 'car' AND "Stages won" = '0'
SELECT "Year" FROM "table_6436" WHERE "Class" = 'car' AND "Stages won" = '0'