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_16817 ( "model" text, "max. motive power" text, "max. torque at rpm" text, "engine displacement" text, "engine type" text, "engine configuration & notes 0-100km/h" text )

### Question ###
How many engine b5204 t3?

### Accurate SQL ###

SELECT COUNT("engine displacement") FROM table_16817 WHERE "engine type" = 'B5204 T3'