CREATE TABLE table_21795650_1 (podiums VARCHAR, series VARCHAR)

How many podiums were there in the Italian Formula Renault 2.0 Winter Series?
SELECT podiums FROM table_21795650_1 WHERE series = "Italian Formula Renault 2.0 Winter series"
SELECT "podiums" FROM "table_21795650_1" WHERE "Italian Formula Renault 2.0 Winter series" = "series"