Fuel economy was another major factor, so the GS uses a turbocharged 4-cylinder engine that produces 255 horsepower. GM promises a zero-to-60 time under seven seconds.
Drivers will be able to switch the car's steering and suspension settings to three different settings: standard, sport and, for tightest feel, GS.
GM hasn't announced pricing for the GS, but it's expected to go on sale in the second half of next year.
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