2008 BMW 550 vs. 2006 Audi S4
To start off, 2008 BMW 550 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Audi S4. In addition, the cost of maintenance, including insurance, on 2006 Audi S4 would be higher. At 4,799 cc, 2008 BMW 550 is equipped with a bigger engine. In terms of performance, 2008 BMW 550 (360 HP @ 6300 RPM) has 21 more horse power than 2006 Audi S4. (339 HP @ 7000 RPM). In normal driving conditions, 2008 BMW 550 should accelerate faster than 2006 Audi S4. With that said, vehicle weight also plays an important factor in acceleration. 2008 BMW 550 weights approximately 385 kg more than 2006 Audi S4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 550. In wet, icy, snow, or gravel driving conditions, 2006 Audi S4 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 BMW 550 (490 Nm @ 3400 RPM) has 79 more torque (in Nm) than 2006 Audi S4. (411 Nm @ 3500 RPM). This means 2008 BMW 550 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4.
Compare all specifications:
| 2008 BMW 550 | 2006 Audi S4 | |
| Make | BMW | Audi |
| Model | 550 | S4 |
| Year Released | 2008 | 2006 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Front |
| Engine Size | 4799 cc | 4163 cc |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 360 HP | 339 HP |
| Engine RPM | 6300 RPM | 7000 RPM |
| Torque | 490 Nm | 411 Nm |
| Torque RPM | 3400 RPM | 3500 RPM |
| Engine Bore Size | 93.1 mm | 84.5 mm |
| Engine Stroke Size | 88.3 mm | 92.8 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 5.9 seconds | 5.9 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1660 kg | 1275 kg |
| Vehicle Length | 4860 mm | 4580 mm |
| Vehicle Width | 1850 mm | 1790 mm |
| Vehicle Height | 1470 mm | 1450 mm |
| Wheelbase Size | 2890 mm | 2660 mm |
| Fuel Consumption Overall | 7.8 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 70 L | 63 L |
