It wore a suit to work and hid a Ferrari-derived V8 under the hood. The Quattroporte Sport GT S set its engine behind the front axle for a near 49/51 weight split, sat 10mm lower at the front and 25mm lower at the rear than other Quattroportes, and could reach 60 in 5.1 seconds — all in a full-size luxury sedan. It was Maserati’s most aggressive four-door of its era, and hardly anyone at the stoplight knew. General Motors sold a 415-horsepower, rear-drive sedan with a Corvette-sourced V8 and barely told anyone. The Chevrolet SS ran 0–60 in 4.6 seconds while still offering heated and ventilated front seats, a heads-up display, a limited-slip differential and Brembo brakes. Magnetic Ride Control gave it three damping modes — Tour, Sport and Performance — so the same sedan could commute on Monday and attack a road on Saturday.