Table schema:
CREATE TABLE table_name_90 (year VARCHAR, engine VARCHAR, points VARCHAR, entrant VARCHAR)

Question: What year were there less than 1.5 points and an Entrant of escuderia bandeirantes, and a maserati straight-4 engine?
SQL: SELECT year FROM table_name_90 WHERE points < 1.5 AND entrant = "escuderia bandeirantes" AND engine = "maserati straight-4"