Giulia Quadrifoglio with seductive looks, a snarling exhaust note, and sharp handling are essential to any Italian sports car, and the racy 2017 Alfa Romeo Giulia Quadrifoglio has all three in spades. A Ferrari-derived 505-hp 2.9-liter twin-turbo V-6 drives the rear wheels through a six-speed manual; an eight-speed automatic is optional. Four selectable drive modes adjust suspension damping and throttle response; in Race mode, stability control is fully disabled, and the Quadrifoglio is all too happy to swing its tail out for a drift.