Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What is the displacement & configuration with CO2 of 204 g/km emissions?

### Inputs:
table_name: table, columns: ['car model', 'displacement & configuration', 'max. motive power @ rpm', 'max. torque @ rpm', 'max. speed', 'emissions CO2']

### Response:
SELECT displacement & configuration FROM table WHERE emissions CO2 = 204 g/km