Alfa Romeo Giulia Quadrifoglio News and Reviews Seductive looks, a snarling exhaust note, and sharp handling are essential to any Italian sports car, and the 10Best-winning Giulia Quadrifoglio has all three in spades. A Ferrari-derived 505-hp 2.9-liter twin-turbo V-6 drives the rear wheels; an eight-speed automatic is the only available transmission. Four selectable drive modes adjust suspension damping and throttle …