CREATE TABLE table_name_41 (points NUMBER, entrant VARCHAR2, chassis VARCHAR2)

What is the sum of all the points won by Peter Whitehead in an alta f2 Chassis?
SELECT SUM(points) FROM table_name_41 WHERE entrant = "peter whitehead" AND chassis = "alta f2"
SELECT SUM("points") FROM "table_name_41" WHERE "alta f2" = "chassis" AND "entrant" = "peter whitehead"