เครื่องยนต์อะไรในรถเมื่อแข่งแชมป์อันดับที่ 1?ไม่จำเป็นต้องใช้ตารางทั้งหมด
What engine what in the vehicle when adt champion racing ranked in 1st place?It is not neccessary to use all the tables.
 table_71126:  "Year" [ real]  "Entrant" [ text]  "Class" [ text]  "Chassis" [ text]  "Engine" [ text]  "Tyres" [ text]  "Rank" [ text]  "Points" [ real] 
SELECT "Engine" FROM table_71126 WHERE "Rank" = '1st' AND "Entrant" = 'adt champion racing'