hould we be surprised by the Mustang GTD? For many, this all-American kick in the cojones of Porsche’s race-face 911 GT3 RS is a stunning thing—a performance car like nothing ever seen from Detroit. Sure, some things remain sacred: There’s a V-8 up front under that well-vented hood, 5.2 liters and packing an 800-hp supercharged punch. But an eight-speed dual-clutch rear transaxle transmission? Semiactive, race-car-style multilink suspension front and
