Table: f1_driver_stats_3
Columns: year
entrant
chassis
engine
points

Question: What's the total points that Scuderia Ferrari with a Ferrari V12 engine have before 1971?
SQL: SELECT SUM("points") FROM f1_driver_stats_3 WHERE "year" < 1971 AND "entrant" = 'scuderia ferrari' AND "engine" = 'ferrari v12'

Question: What's the least amount of points that Walter Wolf Racing had after 1974?
SQL: SELECT MIN("points") FROM f1_driver_stats_3 WHERE "year" > 1974 AND "entrant" = 'walter wolf racing'