2004 Audi A8 vs. 2005 BMW 318
To start off, 2005 BMW 318 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 5,998 cc, 2004 Audi A8 is equipped with a bigger engine. In terms of performance, 2004 Audi A8 (450 HP @ 6300 RPM) has 337 more horse power than 2005 BMW 318. (113 HP @ 5500 RPM). In normal driving conditions, 2004 Audi A8 should accelerate faster than 2005 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 695 kg more than 2005 BMW 318. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 BMW 318. In wet, icy, snow, or gravel driving conditions, 2004 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, 2004 Audi A8 (560 Nm @ 4000 RPM) has 393 more torque (in Nm) than 2005 BMW 318. (167 Nm @ 3750 RPM). This means 2004 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 318. 2004 Audi A8 has automatic transmission and 2005 BMW 318 has manual transmission. 2005 BMW 318 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi A8 | 2005 BMW 318 | |
| Make | Audi | BMW |
| Model | A8 | 318 |
| Year Released | 2004 | 2005 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 1796 cc |
| Engine Type | W | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 113 HP |
| Engine RPM | 6300 RPM | 5500 RPM |
| Torque | 560 Nm | 167 Nm |
| Torque RPM | 4000 RPM | 3750 RPM |
| Engine Bore Size | 84.1 mm | 84.1 mm |
| Engine Stroke Size | 90.2 mm | 81 mm |
| Engine Compression Ratio | 11.0:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1995 kg | 1300 kg |
| Vehicle Length | 5060 mm | 4270 mm |
| Vehicle Width | 1900 mm | 1760 mm |
| Vehicle Height | 1450 mm | 1410 mm |
| Wheelbase Size | 2950 mm | 2740 mm |
