Oddly, the M4 jogged my memory a lot of the Ford Mustang Mach 1 that I recently examined, and never just because each cars have been battleship gray. Both have similar energy and poise, although the Mustang does it with an old-fashioned American V8 under the hood and the BMW with much more finesse. This isn’t so much a dig on the M4 as recognition of the truth that it has been one of Ford’s efficiency targets for the Mustang lately. BMW’s newest slogan is Sheer Driving Pleasure, and that…See More