2005 Audi A8 vs. 2008 BMW 545
To start off, 2008 BMW 545 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 4,398 cc (8 cylinders), 2008 BMW 545 is equipped with a bigger engine. In terms of performance, 2008 BMW 545 (328 HP @ 6100 RPM) has 57 more horse power than 2005 Audi A8. (271 HP @ 6000 RPM) In normal driving conditions, 2008 BMW 545 should accelerate faster than 2005 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 545 weights approximately 205 kg more than 2005 Audi A8. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 545. In wet, icy, snow, or gravel driving conditions, 2005 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, 2008 BMW 545 (450 Nm @ 3600 RPM) has 90 more torque (in Nm) than 2005 Audi A8. (360 Nm @ 3250 RPM). This means 2008 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A8. 2005 Audi A8 has automatic transmission and 2008 BMW 545 has manual transmission. 2008 BMW 545 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi A8 | 2008 BMW 545 | |
| Make | Audi | BMW |
| Model | A8 | 545 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3697 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 271 HP | 328 HP |
| Engine RPM | 6000 RPM | 6100 RPM |
| Torque | 360 Nm | 450 Nm |
| Torque RPM | 3250 RPM | 3600 RPM |
| Engine Bore Size | 84.5 mm | 92 mm |
| Engine Stroke Size | 82.4 mm | 82.7 mm |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 8.9 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1770 kg | 1975 kg |
| Vehicle Length | 5060 mm | 4850 mm |
| Vehicle Width | 1900 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1500 mm |
| Wheelbase Size | 2890 mm | 2840 mm |
| Fuel Consumption Overall | 11.7 L/100km | 11.3 L/100km |
| Fuel Tank Capacity | 90 L | 70 L |
