Question: What is the greatest point of an Entrant of connaught engineering alta straight-4 engine before 1957
SQL: SELECT MAX("Points") FROM "2-1233860-1" WHERE "Engine" = 'alta straight-4' AND "Entrant" = 'connaught engineering' AND "Year" < 1957.0;

Question: What 1957 engine has a Chassis of Connaught Type B?
SQL: SELECT "Engine" FROM "2-1233860-1" WHERE "Chassis" = 'Connaught Type B' AND "Year" > 1957.0;