2009 Audi A8 vs. 2003 BMW 545
To start off, 2009 Audi A8 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 BMW 545. In addition, the cost of maintenance, including insurance, on 2003 BMW 545 would be higher. At 4,398 cc (8 cylinders), 2003 BMW 545 is equipped with a bigger engine. In terms of performance, 2003 BMW 545 (328 HP @ 6100 RPM) has 121 more horse power than 2009 Audi A8. (207 HP @ 5500 RPM) In normal driving conditions, 2003 BMW 545 should accelerate faster than 2009 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 545 weights approximately 15 kg more than 2009 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 BMW 545 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2003 BMW 545. However, in wet, icy, snow, or gravel driving conditions, 2009 Audi A8, being front wheel drive (FWD), will offer much better control with better grip. 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, 2003 BMW 545 (450 Nm @ 3600 RPM) has 170 more torque (in Nm) than 2009 Audi A8. (280 Nm @ 3000 RPM). This means 2003 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A8.
Compare all specifications:
| 2009 Audi A8 | 2003 BMW 545 | |
| Make | Audi | BMW |
| Model | A8 | 545 |
| Year Released | 2009 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2772 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 207 HP | 328 HP |
| Engine RPM | 5500 RPM | 6100 RPM |
| Torque | 280 Nm | 450 Nm |
| Torque RPM | 3000 RPM | 3600 RPM |
| Engine Bore Size | 84.5 mm | 92 mm |
| Engine Stroke Size | 82.4 mm | 82.7 mm |
| Engine Compression Ratio | 12.5:1 | 10.0:1 |
| Top Speed | 238 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8 seconds | 6.1 seconds |
| Drive Type | Front | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1690 kg | 1705 kg |
| Vehicle Length | 5070 mm | 4850 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1470 mm |
| Wheelbase Size | 2950 mm | 2840 mm |
| Fuel Consumption Overall | 8.3 L/100km | 10.9 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
