* 3.6L V6: This was the standard engine, producing 318 horsepower and 275 lb-ft of torque.
* 2.0L Turbocharged 4-cylinder: This was available as an option and produced 272 horsepower and 295 lb-ft of torque.
* 3.6L V6 Twin Turbo: This was available in the CTS Vsport and produced 420 horsepower and 430 lb-ft of torque.
To know the exact engine in a specific 2014 CTS Coupe, you'll need to look at the vehicle's specifications or contact the previous owner.