NCâ€ และทีม SL Formula Racing เป็นครั้งสุดท้ายในฤดูกาลใด?ไม่จำเป็นต้องใช้โต๊ะทั้งหมด
In what season was the final placing NC† and the team SL Formula Racing?It is not neccessary to use all the tables.
 table_25421463_1:  (season [ VARCHAR ] final_placing [ VARCHAR ] team_name [ VARCHAR) ]
SELECT season FROM table_25421463_1 WHERE final_placing = "NC†" AND team_name = "SL Formula Racing"