2007 Audi A8 vs. 2005 BMW 525
To start off, 2007 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 BMW 525. In addition, the cost of maintenance, including insurance, on 2005 BMW 525 would be higher. At 2,967 cc (6 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (230 HP @ 4000 RPM) has 15 more horse power than 2005 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2007 Audi A8 should accelerate faster than 2005 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A8 weights approximately 144 kg more than 2005 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, 2007 Audi A8 (450 Nm @ 1400 RPM) has 200 more torque (in Nm) than 2005 BMW 525. (250 Nm @ 2750 RPM). This means 2007 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 525.
Compare all specifications:
| 2007 Audi A8 | 2005 BMW 525 | |
| Make | Audi | BMW |
| Model | A8 | 525 |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 2497 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 215 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 450 Nm | 250 Nm |
| Torque RPM | 1400 RPM | 2750 RPM |
| Engine Compression Ratio | 17.0:1 | 11.0:1 |
| Top Speed | 238 km/hour | 232 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 8.4 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 | 1830 kg | 1686 kg |
| Vehicle Length | 5060 mm | 4850 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1490 mm |
| Wheelbase Size | 3080 mm | 2890 mm |
| Fuel Consumption Overall | 8.4 L/100km | 10.3 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
