Table: race_results_65
Columns: year
entrant
chassis
engine
points

Question: What are the lowest number of points with a Year of 1978, and a Chassis of ensign n177?
SQL: SELECT MIN("points") FROM race_results_65 WHERE "year" = 1978 AND "chassis" = 'ensign n177'

Question: What are the highest number of points with an Entrant of warsteiner brewery?
SQL: SELECT MAX("points") FROM race_results_65 WHERE "entrant" = 'warsteiner brewery'