CREATE TABLE table_name_66 (entrant VARCHAR2, points VARCHAR2, chassis VARCHAR2)

Which entrant has 49 points and a Mclaren M7A chassis?
SELECT entrant FROM table_name_66 WHERE points = "49" AND chassis = "mclaren m7a"
SELECT "entrant" FROM "table_name_66" WHERE "49" = "points" AND "chassis" = "mclaren m7a"