GT-S is still set to swoop in and snag buyers away from its archnemesis,
Its three variants all have a 4.0-liter twin-turbo V-8. In the base model—if anything at this level can be called base—the engine makes 456 hp.
The GT S adds 47 hp, and in the halo GT R edition, engine revisions give it 577 hp. In our testing,
we got a GT S from 0 to 60 mph in 3.0 seconds.