2008 Audi A8 vs. 2006 BMW 525
To start off, 2008 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 BMW 525. In addition, the cost of maintenance, including insurance, on 2006 BMW 525 would be higher. At 3,934 cc (8 cylinders), 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (271 HP @ 3750 RPM) has 56 more horse power than 2006 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2008 Audi A8 should accelerate faster than 2006 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 375 kg more than 2006 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - 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, 2008 Audi A8 (650 Nm @ 1800 RPM) has 400 more torque (in Nm) than 2006 BMW 525. (250 Nm @ 2750 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 525.
Compare all specifications:
| 2008 Audi A8 | 2006 BMW 525 | |
| Make | Audi | BMW |
| Model | A8 | 525 |
| Year Released | 2008 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 271 HP | 215 HP |
| Engine RPM | 3750 RPM | 6500 RPM |
| Torque | 650 Nm | 250 Nm |
| Torque RPM | 1800 RPM | 2750 RPM |
| Engine Bore Size | 81 mm | 78.8 mm |
| Engine Stroke Size | 95.5 mm | 82 mm |
| Engine Compression Ratio | 18.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 250 km/hour | 237 km/hour |
| Acceleration 0-100mph | 6.7 seconds | 8.3 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1940 kg | 1565 kg |
| Vehicle Length | 5060 mm | 4850 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2890 mm |
| Fuel Consumption Overall | 9.7 L/100km | 9.8 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
