2007 Audi S8 vs. 2005 BMW 318
To start off, 2007 Audi S8 is newer by 2 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 5,204 cc (10 cylinders), 2007 Audi S8 is equipped with a bigger engine. In terms of performance, 2007 Audi S8 (450 HP @ 7000 RPM) has 337 more horse power than 2005 BMW 318. (113 HP @ 4000 RPM). In normal driving conditions, 2007 Audi S8 should accelerate faster than 2005 BMW 318.
Because 2007 Audi S8 is all wheel drive (AWD), it will have significant more traction and grip than 2005 BMW 318. In wet, icy, snow, or gravel driving conditions, 2007 Audi S8 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, 2007 Audi S8 (541 Nm @ 3500 RPM) has 261 more torque (in Nm) than 2005 BMW 318. (280 Nm @ 1750 RPM). This means 2007 Audi S8 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 318. 2007 Audi S8 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. 2007 Audi S8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Audi S8 | 2005 BMW 318 | |
| Make | Audi | BMW |
| Model | S8 | 318 |
| Year Released | 2007 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5204 cc | 1995 cc |
| Engine Cylinders | 10 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 450 HP | 113 HP |
| Engine RPM | 7000 RPM | 4000 RPM |
| Torque | 541 Nm | 280 Nm |
| Torque RPM | 3500 RPM | 1750 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 90 mm |
| Fuel Type | Diesel | Diesel |
| Drive Type | AWD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 5070 mm | 4480 mm |
| Vehicle Width | 1900 mm | 1750 mm |
| Vehicle Height | 1430 mm | 1420 mm |
| Wheelbase Size | 2950 mm | 2730 mm |
| Fuel Consumption Overall | 13.8 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 90 L | 63 L |
