2005 Audi A8 vs. 2008 BMW 318
To start off, 2008 BMW 318 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 2,966 cc (6 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (230 HP @ 4000 RPM) has 89 more horse power than 2008 BMW 318. (141 HP @ 6000 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2008 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 435 kg more than 2008 BMW 318. 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 318. 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, 2005 Audi A8 (450 Nm @ 1400 RPM) has 250 more torque (in Nm) than 2008 BMW 318. (200 Nm @ 3750 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2008 BMW 318.
Compare all specifications:
| 2005 Audi A8 | 2008 BMW 318 | |
| Make | Audi | BMW |
| Model | A8 | 318 |
| Year Released | 2005 | 2008 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2966 cc | 1995 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 230 HP | 141 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 450 Nm | 200 Nm |
| Torque RPM | 1400 RPM | 3750 RPM |
| Engine Bore Size | 83 mm | 84 mm |
| Engine Stroke Size | 91.4 mm | 90 mm |
| Engine Compression Ratio | 17.0:1 | 10.2:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Top Speed | 243 km/hour | 218 km/hour |
| Acceleration 0-100mph | 7.8 seconds | 9.3 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 | 1830 kg | 1395 kg |
| Vehicle Length | 5060 mm | 4870 mm |
| Vehicle Height | 1450 mm | 1480 mm |
| Wheelbase Size | 2950 mm | 2730 mm |
| Fuel Consumption Overall | 8.4 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 90 L | 63 L |
