CREATE TABLE table_name_84 (top_speed__km_h_ INTEGER, model VARCHAR)
SELECT SUM(top_speed__km_h_) FROM table_name_84 WHERE model = "1.8 20v t"
ความเร็วสูงสุดของรุ่น 1.8 20v t คืออะไร?
What is the top speed of the model 1.8 20v t?