The V-12 is dying. Other than just a few holdouts endeavoring to maintain the monstrous motor alive, most firms have downsized or electrified as The Man cracks down on emissions-spewing, fuel-thirsty engines. Rolls-Royce is likely one of the few remaining dreamers. Its 6.75-liter V-12 is ubiquitous—a monument to luxurious and efficiency that has one way