2008 Audi RS6 vs. 2009 BMW 545
To start off, 2009 BMW 545 is newer by 1 year(s). Which means there will be less support and parts availability for 2008 Audi RS6. In addition, the cost of maintenance, including insurance, on 2008 Audi RS6 would be higher. At 4,398 cc (8 cylinders), 2009 BMW 545 is equipped with a bigger engine. In terms of performance, 2008 Audi RS6 (444 HP @ 5700 RPM) has 116 more horse power than 2009 BMW 545. (328 HP @ 6100 RPM). In normal driving conditions, 2008 Audi RS6 should accelerate faster than 2009 BMW 545. With that said, vehicle weight also plays an important factor in acceleration. 2009 BMW 545 weights approximately 20 kg more than 2008 Audi RS6.
Because 2008 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 2009 BMW 545. In wet, icy, snow, or gravel driving conditions, 2008 Audi RS6 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 RS6 (560 Nm @ 1950 RPM) has 110 more torque (in Nm) than 2009 BMW 545. (450 Nm @ 3600 RPM). This means 2008 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW 545. 2008 Audi RS6 has automatic transmission and 2009 BMW 545 has manual transmission. 2009 BMW 545 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi RS6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2008 Audi RS6 | 2009 BMW 545 | |
| Make | Audi | BMW |
| Model | RS6 | 545 |
| Year Released | 2008 | 2009 |
| Body Type | Station Wagon | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 328 HP |
| Engine RPM | 5700 RPM | 6100 RPM |
| Torque | 560 Nm | 450 Nm |
| Torque RPM | 1950 RPM | 3600 RPM |
| Engine Bore Size | 84.5 mm | 92 mm |
| Engine Stroke Size | 93 mm | 82.7 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Top Speed | 250 km/hour | 250 km/hour |
| Acceleration 0-100mph | 4.7 seconds | 5.9 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1955 kg | 1975 kg |
| Vehicle Length | 4840 mm | 4850 mm |
| Vehicle Width | 1860 mm | 1850 mm |
| Vehicle Height | 1400 mm | 1500 mm |
| Wheelbase Size | 2770 mm | 2840 mm |
| Fuel Consumption Overall | 14.8 L/100km | 11.3 L/100km |
| Fuel Tank Capacity | 82 L | 70 L |
