2008 Audi S8 vs. 2005 BMW 740
To start off, 2008 Audi S8 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 BMW 740. In addition, the cost of maintenance, including insurance, on 2005 BMW 740 would be higher. At 5,204 cc (10 cylinders), 2008 Audi S8 is equipped with a bigger engine. In terms of performance, 2008 Audi S8 (450 HP @ 7000 RPM) has 133 more horse power than 2005 BMW 740. (317 HP @ 6300 RPM). In normal driving conditions, 2008 Audi S8 should accelerate faster than 2005 BMW 740. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 740 weights approximately 719 kg more than 2008 Audi S8.
Because 2008 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2005 BMW 740. In wet, icy, snow, or gravel driving conditions, 2008 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, 2008 Audi S8 (540 Nm @ 3500 RPM) has 149 more torque (in Nm) than 2005 BMW 740. (391 Nm @ 3500 RPM). This means 2008 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 740.
Compare all specifications:
| 2008 Audi S8 | 2005 BMW 740 | |
| Make | Audi | BMW |
| Model | S8 | 740 |
| Year Released | 2008 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 4000 cc |
| Engine Cylinders | 10 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 317 HP |
| Engine RPM | 7000 RPM | 6300 RPM |
| Torque | 540 Nm | 391 Nm |
| Torque RPM | 3500 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 87 mm |
| Engine Stroke Size | 92.8 mm | 84.1 mm |
| Top Speed | 249 km/hour | 250 km/hour |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1176 kg | 1895 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 | 8.2 L/100km |
| Fuel Consumption City | 18.1 L/100km | 16.3 L/100km |
| Fuel Consumption Overall | 15.7 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 90 L | 88 L |
