2008 Audi S6 vs. 2005 BMW 318
To start off, 2008 Audi S6 is newer by 3 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), 2008 Audi S6 is equipped with a bigger engine. In terms of performance, 2008 Audi S6 (435 HP @ 6800 RPM) has 294 more horse power than 2005 BMW 318. (141 HP @ 6000 RPM). In normal driving conditions, 2008 Audi S6 should accelerate faster than 2005 BMW 318. With that said, vehicle weight also plays an important factor in acceleration. 2005 BMW 318 weights approximately 235 kg more than 2008 Audi S6.
Because 2008 Audi S6 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, 2008 Audi S6 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, 2008 Audi S6 (540 Nm @ 3000 RPM) has 340 more torque (in Nm) than 2005 BMW 318. (200 Nm @ 3750 RPM). This means 2008 Audi S6 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 318.
Compare all specifications:
| 2008 Audi S6 | 2005 BMW 318 | |
| Make | Audi | BMW |
| Model | S6 | 318 |
| Year Released | 2008 | 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 | 435 HP | 141 HP |
| Engine RPM | 6800 RPM | 6000 RPM |
| Torque | 540 Nm | 200 Nm |
| Torque RPM | 3000 RPM | 3750 RPM |
| Engine Bore Size | 84.5 mm | 84 mm |
| Engine Stroke Size | 92.8 mm | 90 mm |
| Engine Compression Ratio | 12.5:1 | 10.2:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1160 kg | 1395 kg |
| Vehicle Length | 4920 mm | 4480 mm |
| Vehicle Width | 2020 mm | 1750 mm |
| Vehicle Height | 1450 mm | 1420 mm |
| Wheelbase Size | 2850 mm | 2730 mm |
| Fuel Consumption Overall | 14.9 L/100km | 7.2 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
