2007 Audi A8 vs. 2004 BMW 525
To start off, 2007 Audi A8 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW 525. In addition, the cost of maintenance, including insurance, on 2004 BMW 525 would be higher. At 3,697 cc (8 cylinders), 2007 Audi A8 is equipped with a bigger engine. In terms of performance, 2007 Audi A8 (276 HP @ 6000 RPM) has 102 more horse power than 2004 BMW 525. (174 HP @ 4000 RPM). In normal driving conditions, 2007 Audi A8 should accelerate faster than 2004 BMW 525. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A8 weights approximately 71 kg more than 2004 BMW 525. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 525. In wet, icy, snow, or gravel driving conditions, 2007 Audi A8 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, 2004 BMW 525 (410 Nm @ 2000 RPM) has 50 more torque (in Nm) than 2007 Audi A8. (360 Nm @ 3750 RPM). This means 2004 BMW 525 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A8.
Compare all specifications:
| 2007 Audi A8 | 2004 BMW 525 | |
| Make | Audi | BMW |
| Model | A8 | 525 |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3697 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 276 HP | 174 HP |
| Engine RPM | 6000 RPM | 4000 RPM |
| Torque | 360 Nm | 410 Nm |
| Torque RPM | 3750 RPM | 2000 RPM |
| Engine Bore Size | 84.5 mm | 84.1 mm |
| Engine Stroke Size | 82.4 mm | 75.1 mm |
| Engine Compression Ratio | 11.0:1 | 17.0:1 |
| Acceleration 0-100mph | 7.3 seconds | 8.3 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1776 kg | 1705 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 Highway | 8.6 L/100km | 6.2 L/100km |
| Fuel Consumption City | 17.1 L/100km | 10.6 L/100km |
| Fuel Consumption Overall | 11.7 L/100km | 7.8 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
