You can't grant CREATE TABLE on a specific table, that right can only be granted on the owner database. Do you really need DROP / CREATE or would simply allowing the role members to DELETE all the data be sufficient?
GRANT CREATE TABLE ON A_Z_STAG_A TO BMW_AC_DEV;
GRANT CREATE TABLE ON B_Z_DATA_A TO BMW_AC_DEV;
GRANT DROP TABLE ON A_Z_STAG_A.BMW3_BMWSTMT TO BMW_AC_DEV;
GRANT DROP TABLE ON B_Z_DATA_A.G4W3_G4WSTMT TO BMW_AC_DEV;
If you really need to restrict the access to Drop / re-Create of a single table, consider creating a stored procedure to do that and granting EXECUTE PROCEDURE to the role.