user: Question: What is the emissions CO2 with a max speed of km/h (mph) of the car model Panamera 4S?
Columns: ['car model', 'displacement & configuration', 'max. motive power @ rpm', 'max. torque @ rpm', 'max. speed', 'emissions CO2']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Panamera', '3.6litre (3605cc) V6', 'bhp ( kW ; PS ) @ 6,200', 'N·m ( lbf·ft ) @ 3,750', 'km/h ( mph )', '196 g/km']
SQL:

assistant: SELECT "emissions CO2" FROM "Table" WHERE "max. speed" = 'km/h (mph)' AND "car model" = 'Panamera 4S';