2006 Audi A8 vs. 2005 BMW 318
To start off, 2006 Audi A8 is newer by 1 year(s). Which means there will be less support and parts availability for 2005 BMW 318. In addition, the cost of maintenance, including insurance, on 2005 BMW 318 would be higher. At 4,172 cc (8 cylinders), 2006 Audi A8 is equipped with a bigger engine. In terms of performance, 2006 Audi A8 (329 HP @ 6500 RPM) has 188 more horse power than 2005 BMW 318. (141 HP @ 6000 RPM). In normal driving conditions, 2006 Audi A8 should accelerate faster than 2005 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A8 weights approximately 460 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 2006 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, 2006 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, 2006 Audi A8 (430 Nm @ 3500 RPM) has 229 more torque (in Nm) than 2005 BMW 318. (201 Nm @ 3750 RPM). This means 2006 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 318.
Compare all specifications:
| 2006 Audi A8 | 2005 BMW 318 | |
| Make | Audi | BMW |
| Model | A8 | 318 |
| Year Released | 2006 | 2005 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 329 HP | 141 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 430 Nm | 201 Nm |
| Torque RPM | 3500 RPM | 3750 RPM |
| Engine Bore Size | 84.6 mm | 84 mm |
| Engine Stroke Size | 93 mm | 90 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Acceleration 0-100mph | 6.3 seconds | 9.3 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1855 kg | 1395 kg |
| Vehicle Length | 5060 mm | 4490 mm |
| Vehicle Width | 1900 mm | 1760 mm |
| Vehicle Height | 1450 mm | 1380 mm |
| Wheelbase Size | 2950 mm | 2740 mm |
| Fuel Consumption Overall | 8.8 L/100km | 7.4 L/100km |
| Fuel Tank Capacity | 90 L | 63 L |
