2007 Audi S6 vs. 2004 BMW 545
To start off, 2007 Audi S6 is newer by 3 year(s). Which means there will be less support and parts availability for 2004 BMW 545. In addition, the cost of maintenance, including insurance, on 2004 BMW 545 would be higher. At 4,398 cc (8 cylinders), 2004 BMW 545 is equipped with a bigger engine. In terms of performance, 2007 Audi S6 (335 HP @ 7000 RPM) has 20 more horse power than 2004 BMW 545. (315 HP @ 7750 RPM). In normal driving conditions, 2007 Audi S6 should accelerate faster than 2004 BMW 545. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 545 weights approximately 20 kg more than 2007 Audi S6.
Because 2007 Audi S6 is four wheel drive (4WD), it will have significant more traction and grip than 2004 BMW 545. In wet, icy, snow, or gravel driving conditions, 2007 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, 2004 BMW 545 (447 Nm) has 27 more torque (in Nm) than 2007 Audi S6. (420 Nm). This means 2004 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi S6.
Compare all specifications:
| 2007 Audi S6 | 2004 BMW 545 | |
| Make | Audi | BMW |
| Model | S6 | 545 |
| Year Released | 2007 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4172 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Horse Power | 335 HP | 315 HP |
| Engine RPM | 7000 RPM | 7750 RPM |
| Torque | 420 Nm | 447 Nm |
| Engine Compression Ratio | 11.0:1 | 10.5:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1760 kg | 1780 kg |
| Vehicle Length | 4840 mm | 4850 mm |
| Vehicle Width | 2000 mm | 1850 mm |
| Vehicle Height | 1450 mm | 1480 mm |
| Wheelbase Size | 2770 mm | 2830 mm |
| Fuel Consumption Overall | 14.3 L/100km | 11.8 L/100km |
| Fuel Tank Capacity | 82 L | 70 L |
