2009 Audi A8 vs. 2006 BMW 525
To start off, 2009 Audi A8 is newer by 3 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 4,163 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (350 HP @ 6800 RPM) has 135 more horse power than 2006 BMW 525. (215 HP @ 6500 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2006 BMW 525.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW 525. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Audi A8 (442 Nm @ 3500 RPM) has 191 more torque (in Nm) than 2006 BMW 525. (251 Nm @ 2750 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW 525.
Compare all specifications:
| 2009 Audi A8 | 2006 BMW 525 | |
| Make | Audi | BMW |
| Model | A8 | 525 |
| Year Released | 2009 | 2006 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 2497 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 350 HP | 215 HP |
| Engine RPM | 6800 RPM | 6500 RPM |
| Torque | 442 Nm | 251 Nm |
| Torque RPM | 3500 RPM | 2750 RPM |
| Engine Bore Size | 84.5 mm | 78.8 mm |
| Engine Stroke Size | 92.8 mm | 82 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Length | 5070 mm | 4850 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1500 mm |
| Wheelbase Size | 2950 mm | 2840 mm |
| Fuel Consumption Overall | 13.1 L/100km | 8.9 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
