2008 Audi S6 vs. 2005 BMW 740
To start off, 2008 Audi S6 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 4,172 cc (8 cylinders), 2008 Audi S6 is equipped with a bigger engine. In terms of performance, 2008 Audi S6 (335 HP @ 7000 RPM) has 18 more horse power than 2005 BMW 740. (317 HP @ 6300 RPM). In normal driving conditions, 2008 Audi S6 should accelerate faster than 2005 BMW 740. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 740 weights approximately 80 kg more than 2008 Audi S6.
Because 2008 Audi S6 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 740. In wet, icy, snow, or gravel driving conditions, 2008 Audi S6 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 S6 (420 Nm @ 3400 RPM) has 29 more torque (in Nm) than 2005 BMW 740. (391 Nm @ 3500 RPM). This means 2008 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 740.
Compare all specifications:
| 2008 Audi S6 | 2005 BMW 740 | |
| Make | Audi | BMW |
| Model | S6 | 740 |
| Year Released | 2008 | 2005 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4000 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 317 HP |
| Engine RPM | 7000 RPM | 6300 RPM |
| Torque | 420 Nm | 391 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 87 mm |
| Engine Stroke Size | 93 mm | 84.1 mm |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 6.8 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1815 kg | 1895 kg |
| Vehicle Length | 4840 mm | 5050 mm |
| Vehicle Width | 1860 mm | 1910 mm |
| Vehicle Height | 1450 mm | 1500 mm |
| Wheelbase Size | 2770 mm | 3000 mm |
| Fuel Consumption Overall | 14.5 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 82 L | 88 L |
