Question: What are the lowest number of points with a Year of 1978, and a Chassis of Ensign N177?
SQL: SELECT MIN("Points") FROM "2-1226456-2" WHERE "Year" = 1978.0 AND "Chassis" = 'Ensign N177';

Question: What are the highest number of points with an Entrant of Warsteiner Brewery?
SQL: SELECT MAX("Points") FROM "2-1226456-2" WHERE "Entrant" = 'Warsteiner Brewery';