Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_52265 ( "model" text, "cylinders/ valves" text, "displacement cc" real, "max. power kW (PS) at rpm" text, "max. torque (Nm) at rpm" text, "engine code" text, "top speed (km/h)" real, "production period" text )

### Question ###
What is the top speed of the model 1.8 20v t?

### Accurate SQL ###

SELECT SUM("top speed (km/h)") FROM table_52265 WHERE "model" = '1.8 20v t'