2007 Audi S8 vs. 2011 BMW 550
To start off, 2011 BMW 550 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 44 more horse power than 2011 BMW 550. (400 HP @ 5500 RPM). In normal driving conditions, 2007 Audi S8 should accelerate faster than 2011 BMW 550. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW 550 weights approximately 110 kg more than 2007 Audi S8.
Both vehicles are all wheel drive (AWD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2011 BMW 550 (609 Nm @ 1750 RPM) has 69 more torque (in Nm) than 2007 Audi S8. (540 Nm @ 3500 RPM). This means 2011 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S8.
Compare all specifications:
| 2007 Audi S8 | 2011 BMW 550 | |
| Make | Audi | BMW |
| Model | S8 | 550 |
| Year Released | 2007 | 2011 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 4400 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 444 HP | 400 HP |
| Engine RPM | 7000 RPM | 5500 RPM |
| Torque | 540 Nm | 609 Nm |
| Torque RPM | 3500 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | AWD | AWD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1940 kg | 2050 kg |
| Vehicle Length | 5070 mm | 4905 mm |
| Vehicle Width | 1900 mm | 1859 mm |
| Vehicle Height | 1430 mm | 1463 mm |
| Wheelbase Size | 2950 mm | 2969 mm |
| Fuel Tank Capacity | 90 L | 70 L |
