โรงงานแห่งนี้คือ Castle Bromwich ผลิตกี่รุ่น?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
how many models produced where the plant is castle bromwich?It is not neccessary to use all the tables.
 table_250309_1:  (models_produced [ VARCHAR ] plant [ VARCHAR) ]
SELECT COUNT(models_produced) FROM table_250309_1 WHERE plant = "Castle Bromwich"