2009 Audi A8 vs. 2007 BMW 318
To start off, 2009 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 BMW 318. In addition, the cost of maintenance, including insurance, on 2007 BMW 318 would be higher. At 3,936 cc (8 cylinders), 2009 Audi A8 is equipped with a bigger engine. In terms of performance, 2009 Audi A8 (271 HP @ 3750 RPM) has 151 more horse power than 2007 BMW 318. (120 HP @ 4000 RPM). In normal driving conditions, 2009 Audi A8 should accelerate faster than 2007 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2009 Audi A8 weights approximately 360 kg more than 2007 BMW 318. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2009 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2007 BMW 318. In wet, icy, snow, or gravel driving conditions, 2009 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, 2009 Audi A8 (650 Nm @ 1800 RPM) has 370 more torque (in Nm) than 2007 BMW 318. (280 Nm @ 1750 RPM). This means 2009 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW 318. 2009 Audi A8 has automatic transmission and 2007 BMW 318 has manual transmission. 2007 BMW 318 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A8 | 2007 BMW 318 | |
| Make | Audi | BMW |
| Model | A8 | 318 |
| Year Released | 2009 | 2007 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3936 cc | 1994 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 271 HP | 120 HP |
| Engine RPM | 3750 RPM | 4000 RPM |
| Torque | 650 Nm | 280 Nm |
| Torque RPM | 1800 RPM | 1750 RPM |
| Engine Compression Ratio | 18.0:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Top Speed | 245 km/hour | 204 km/hour |
| Acceleration 0-100mph | 6.7 seconds | 10.9 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 | 1940 kg | 1580 kg |
| Vehicle Length | 5060 mm | 4480 mm |
| Vehicle Width | 1900 mm | 1820 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Wheelbase Size | 2950 mm | 2770 mm |
| Fuel Consumption Overall | 9.7 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 90 L | 61 L |
