One thing about Carroll Shelby and his cars, they aren’t subtle. Sneaky, maybe. Sly, perhaps. Deceptive, undoubtedly. But not subtle. His latest entries in the automotive lists—the Shelby Mustang GT350 and GT500—are typical. They started with a Mustang fastback, re-styled the extremities, added a roll bar, put in shoulder straps, stuck on some trim and it became a different car. It looks some­thing like a racing car, yet it isn’t. It also has something of the flavor of a luxurious Grand Touring machine, but it isn’t quite that either. It’s different from anything Shelby has of­fered before—less brutal, less purposefully ugly, less stark performance—and yet it offers an abundance of those virtues for which Shelby’s products have become famous. It goes, it handles and it stops. The appearance is distinctive. At the front the nose has been given a revised shell that does away with the chrome grille above the bumper and adds a scoop below. Where the grille used to be there’s now a finished-off snout that is backed by an expanded-metal bug strainer and encases a pair of close-together headlights mounted in the manner made pop­ular on international rally cars. The hood, also fib...