2005 Audi A8 vs. 2009 BMW 318
To start off, 2009 BMW 318 is newer by 4 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 4,178 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (335 HP @ 4000 RPM) has 208 more horse power than 2009 BMW 318. (127 HP @ 5750 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2009 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 440 kg more than 2009 BMW 318. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2005 Audi A8 (430 Nm) has 249 more torque (in Nm) than 2009 BMW 318. (181 Nm). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 318.
Compare all specifications:
| 2005 Audi A8 | 2009 BMW 318 | |
| Make | Audi | BMW |
| Model | A8 | 318 |
| Year Released | 2005 | 2009 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4178 cc | 1995 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 335 HP | 127 HP |
| Engine RPM | 4000 RPM | 5750 RPM |
| Torque | 430 Nm | 181 Nm |
| Engine Bore Size | 85 mm | 84 mm |
| Engine Stroke Size | 93 mm | 90 mm |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1945 kg | 1505 kg |
| Vehicle Length | 5060 mm | 4530 mm |
| Vehicle Width | 1900 mm | 1820 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Wheelbase Size | 2950 mm | 2770 mm |
| Fuel Consumption Overall | 11.8 L/100km | 7.6 L/100km |
| Fuel Tank Capacity | 90 L | 63 L |
