The Porsche Panamera is a four-door luxury car is a large, low-slung sedan with a coupe silhouette and a hatchback. Handling is agile, with excellent steering and a supple ride. A turbocharged 2.9-liter V-6 engine makes 348 horsepower and is hooked up to an eight-speed dual-clutch automatic transmission. Base Panameras are rear-wheel drive.