The S80 is Volvo's flagship 4-door sedan, and following on Volvo tradition, it's among the safest in its class of high-end luxury sedans, making it an excellent alternative to the BMW 5-Series and Mercedes-Benz E-Class. With available all-wheel-drive, it's a capable performer in inclement weather, while several powerful engines mean that although it's safe, it's still fun to drive.