The S5 appeals to those who are happy with just enough performance to make a drive exciting without scary power and at a reasonable price. Under the hood of the S5 lies a turbocharged 3.0-liter V6 that sends 349 horsepower and 369 lb-ft of torque to all four corners, enabling a 4.3 second run from 0-60 mph. Pair that impressive power outputs with a spectacular cabin and you have an excellent option within the mid-level performance segment.