This no-holds-barred steel-cage match pits Cadillac's 400-hp CTS-V against Jaguar's 390-hp S-Type R. Both have four doors and distinctive exteriors. Both have interiors that define the word "spuxury", which I've just made up to describe a delicate balance of sport and luxury. Only one, however, comes in a manual. And that very same vehicle brings you ten more horsepower for ten grand less. The question is: can the feisty feline keep up?