Table: race_results_88
Columns: year
entrant
chassis
engine
points

Question: What engine did Scuderia Ambrosiana with fewer than 4 points have?
SQL: SELECT "engine" FROM race_results_88 WHERE "entrant" = 'scuderia ambrosiana' AND "points" < 4

Question: What chassis had fewer than 0 points in a year before 1954?
SQL: SELECT "chassis" FROM race_results_88 WHERE "year" < 1954 AND "points" = 0

Question: What chassis had an entrant of G.A. Vandervell?
SQL: SELECT "chassis" FROM race_results_88 WHERE "entrant" = 'g.a. vandervell'