CREATE TABLE table_name_85 (engine VARCHAR2, entrant VARCHAR2, points VARCHAR2)

What engine did Scuderia Ambrosiana with fewer than 4 points have?
SELECT engine FROM table_name_85 WHERE entrant = "scuderia ambrosiana" AND points < 4
SELECT "engine" FROM "table_name_85" WHERE "entrant" = "scuderia ambrosiana" AND "points" < 4