Those who want high performance to go along with a high safety rating should look no further than the Volvo S80 V8. This trim features the biggest, strongest engine in the lineup, at 4.4 liters and 311 hp. Gas mileage comes out to 15 mpg in the city, 23 on the highway. Drivers like the fact that this trim adapts to terrain and traffic. For example, its cruise control actually slows down in slower traffic and picks up the pace when congestion subsides. Overall, it appears the S80 V8 gives drivers the power and precision they look for in a sedan.