2008 Audi A8 vs. 2004 BMW 545
To start off, 2008 Audi A8 is newer by 4 year(s). Which means there will be less support and parts availability for 2004 BMW 545. In addition, the cost of maintenance, including insurance, on 2004 BMW 545 would be higher. At 4,398 cc (8 cylinders), 2004 BMW 545 is equipped with a bigger engine. In terms of performance, 2004 BMW 545 (325 HP @ 6100 RPM) has 95 more horse power than 2008 Audi A8. (230 HP @ 4000 RPM) In normal driving conditions, 2004 BMW 545 should accelerate faster than 2008 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A8 weights approximately 36 kg more than 2004 BMW 545.
Because 2008 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 545. In wet, icy, snow, or gravel driving conditions, 2008 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, both vehicles can yield 450 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2008 Audi A8 | 2004 BMW 545 | |
| Make | Audi | BMW |
| Model | A8 | 545 |
| Year Released | 2008 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 325 HP |
| Engine RPM | 4000 RPM | 6100 RPM |
| Torque | 450 Nm | 450 Nm |
| Torque RPM | 1400 RPM | 3600 RPM |
| Engine Compression Ratio | 17.0:1 | 10.0:1 |
| Top Speed | 243 km/hour | 245 km/hour |
| Acceleration 0-100mph | 7.8 seconds | 6 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1836 kg | 1800 kg |
| Vehicle Length | 5060 mm | 4850 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1500 mm |
| Wheelbase Size | 2950 mm | 2830 mm |
| Fuel Consumption Overall | 8.4 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
