2007 Audi S8 vs. 2011 BMW 520
To start off, 2011 BMW 520 is newer by 4 year(s). Which means there will be less support and parts availability for 2007 Audi S8. In addition, the cost of maintenance, including insurance, on 2007 Audi S8 would be higher. At 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (444 HP @ 7000 RPM) has 262 more horse power than 2011 BMW 520. (182 HP @ 5000 RPM). In normal driving conditions, 2007 Audi S8 should accelerate faster than 2011 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi S8 weights approximately 150 kg more than 2011 BMW 520. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2011 BMW 520. In wet, icy, snow, or gravel driving conditions, 2007 Audi S8 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2007 Audi S8 (540 Nm @ 3500 RPM) has 270 more torque (in Nm) than 2011 BMW 520. (270 Nm @ 4500 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2011 BMW 520.
Compare all specifications:
| 2007 Audi S8 | 2011 BMW 520 | |
| Make | Audi | BMW |
| Model | S8 | 520 |
| Year Released | 2007 | 2011 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 1997 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 182 HP |
| Engine RPM | 7000 RPM | 5000 RPM |
| Torque | 540 Nm | 270 Nm |
| Torque RPM | 3500 RPM | 4500 RPM |
| Engine Bore Size | 84.5 mm | 90.1 mm |
| Engine Stroke Size | 92.8 mm | 84 mm |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 220 km/hour |
| Acceleration 0-100mph | 5.1 seconds | 8.4 seconds |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | 8-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1940 kg | 1790 kg |
| Vehicle Length | 5070 mm | 4907 mm |
| Vehicle Width | 1900 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1462 mm |
| Wheelbase Size | 2950 mm | 2968 mm |
| Fuel Tank Capacity | 90 L | 70 L |
