The S80 that surprised you was the T6, which had a twin-turbocharged 2.8-liter inline-six engine that produced 272 horsepower. It pulled confidently, putting the car firmly in performance saloon area with 380Nm of torque available across a wide rpm range. The second generation's S80 V8, a 4.4-liter V8 with 311 horsepower and a top speed of 100 km/h in about 5.9 seconds, went even farther. That figure is still relevant today, and when combined with Volvo's AWD technology, it produced that performance with stability and poise rather than drama.