What is the top speed of the model 1.8 20v t?
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"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What is the top speed of the model 1.8 20v t? ### Input: CREATE TABLE table_name_84 (
    top_speed__km_h_ INTEGER,
    model VARCHAR
) ### Response: SELECT SUM(top_speed__km_h_) FROM table_name_84 WHERE model = "1.8 20v t"