CREATE TABLE table_name_93 (chassis VARCHAR(255), year VARCHAR(255), engine VARCHAR(255), points VARCHAR(255))
What kind of Chassis supports a Maserati Straight-6 engine with Points greater than 0 and built in the year 1955?
    
SQL: SELECT chassis FROM table_name_93 WHERE engine = "maserati straight-6" AND points > 0 AND year = 1955