2019 BMW M3 CS - Rated at 453 horsepower, the M3 CS is not that much more powerful than a regular M3 (425) or the M3 Competition (444), but it’s S55 twin-turbocharged 3.0-liter inline-six delivers more torque with 443 pounds-feet under your right foot, as opposed to 406 for the base M3 or the M3 Competition.