2005 Audi S8 vs. 2009 BMW 740
To start off, 2009 BMW 740 is newer by 4 year(s). Which means there will be less support and parts availability for 2005 Audi S8. In addition, the cost of maintenance, including insurance, on 2005 Audi S8 would be higher. At 4,172 cc (8 cylinders), 2005 Audi S8 is equipped with a bigger engine. In terms of performance, 2009 BMW 740 (254 HP @ 4000 RPM) has 7 more horse power than 2005 Audi S8. (247 HP @ 4000 RPM) In normal driving conditions, 2009 BMW 740 should accelerate faster than 2005 Audi S8. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 740 weights approximately 320 kg more than 2005 Audi S8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2009 BMW 740. In wet, icy, snow, or gravel driving conditions, 2005 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, 2009 BMW 740 (600 Nm @ 1900 RPM) has 150 more torque (in Nm) than 2005 Audi S8. (450 Nm @ 3400 RPM). This means 2009 BMW 740 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi S8.
Compare all specifications:
| 2005 Audi S8 | 2009 BMW 740 | |
| Make | Audi | BMW |
| Model | S8 | 740 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 3901 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 247 HP | 254 HP |
| Engine RPM | 4000 RPM | 4000 RPM |
| Torque | 450 Nm | 600 Nm |
| Torque RPM | 3400 RPM | 1900 RPM |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1770 kg | 2090 kg |
| Wheelbase Size | 2290 mm | 3000 mm |
| Fuel Tank Capacity | 90 L | 88 L |
