Table: racing_stats_4
Columns: year
entrant
chassis
engine
points

Question: What chassis was paired with climax straight-4?
SQL: SELECT "chassis" FROM racing_stats_4 WHERE "engine" = 'climax straight-4'

Question: What year did Cooper Car Company enter?
SQL: SELECT AVG("year") FROM racing_stats_4 WHERE "entrant" = 'cooper car company'

Question: What year has more than 0 points?
SQL: SELECT "year" FROM racing_stats_4 WHERE "points" > 0

Question: What is the total points before 1963?
SQL: SELECT SUM("points") FROM racing_stats_4 WHERE "year" < 1963