Table schema:
CREATE TABLE table_name_41 (chassis VARCHAR, points VARCHAR, year VARCHAR, entrant VARCHAR)

Question: What is the Chassis having a year later than 1990, and Minardi Scuderia Italia as an entrant, and 4 points?
SQL: SELECT chassis FROM table_name_41 WHERE year > 1990 AND entrant = "minardi scuderia italia" AND points = 4