Powered by Volvo’s new 3.2-liter inline six-cylinder engine, the standard S80 makes 235 horsepower at 6,200 rpm and 236 lb.-ft. of torque at a relatively low 3,200 rpm. The more expensive V8 model’s Yamaha-built 4.4-liter engine generates 311 horsepower at 5,950 rpm and 325 lb.-ft. of torque at 3,950 rpm. Both engines are connected to a six-speed automatic transmission with manual shift mode, and both require premium fuel. EPA fuel economy figures were not available when this was written. Six-cylinder models come with front-wheel drive, while V8 models are exclusively all-wheel drive.