If a car has sporting pretentions, it ought to have a good engine. Thankfully, the GS offers the choice of two. The engine in the new GS 200t is a 2.0L turbocharged 4-cylinder, which makes 241 horsepower and 258 pound-feet of torque, with an estimated 33 mpg return on the highway. It is mated to an 8-speed auto transmission.