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_2326823_2 (model VARCHAR, max_power_output VARCHAR)

### Question ###
How many models have maximum power output is 162kw (220 ps) at 6,300 rpm?

### Accurate SQL ###

SELECT COUNT(model) FROM table_2326823_2 WHERE max_power_output = "162kW (220 PS) at 6,300 rpm"