2009 Audi S8 vs. 2007 BMW 750
To start off, 2009 Audi S8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 750. In addition, the cost of maintenance, including insurance, on 2007 BMW 750 would be higher. At 5,204 cc (10 cylinders), 2009 Audi S8 is equipped with a bigger engine. In terms of performance, 2009 Audi S8 (450 HP @ 7000 RPM) has 90 more horse power than 2007 BMW 750. (360 HP @ 6300 RPM). In normal driving conditions, 2009 Audi S8 should accelerate faster than 2007 BMW 750. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW 750 weights approximately 660 kg more than 2009 Audi S8.
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, 2009 Audi S8 (540 Nm @ 3500 RPM) has 52 more torque (in Nm) than 2007 BMW 750. (488 Nm @ 3400 RPM). This means 2009 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 750.
Compare all specifications:
| 2009 Audi S8 | 2007 BMW 750 | |
| Make | Audi | BMW |
| Model | S8 | 750 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 4797 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 360 HP |
| Engine RPM | 7000 RPM | 6300 RPM |
| Torque | 540 Nm | 488 Nm |
| Torque RPM | 3500 RPM | 3400 RPM |
| Engine Compression Ratio | 12.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | AWD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1175 kg | 1835 kg |
| Vehicle Length | 5070 mm | 5050 mm |
| Vehicle Width | 1900 mm | 1910 mm |
| Vehicle Height | 1430 mm | 1500 mm |
| Wheelbase Size | 2950 mm | 3000 mm |
| Fuel Consumption Highway | 12.4 L/100km | 9.4 L/100km |
| Fuel Consumption City | 18.2 L/100km | 13.8 L/100km |
| Fuel Consumption Overall | 15.8 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 90 L | 88 L |
