Chevrolet Cobalt SS
Although discontinued, the Cobalt SS will be remembered as one of the best and most potent four-cylinder cars. Available as a supercharged, turbocharged, or naturally aspirated model, the best SS was the turbocharged 2.0-liter four-cylinder introduced in 2008 (via The Drive).
The engine delivered 260 horsepower, which was astonishing by today’s standards and more than the competitors. This edition of the Cobalt SS also had considerable tuning potential so getting even more power from this engine was easy.