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_17689 ( "Quattroporte IV" text, "Units Produced" real, "Production Period" text, "Engine Capacity" text, "Power" text, "Max Speed" text )

### Question ###
What type of quattroporte iv only produced 340 units?

### Accurate SQL ###

SELECT "Quattroporte IV" FROM table_17689 WHERE "Units Produced" = '340'