2006 Audi S4 vs. 2004 BMW 545
To start off, 2006 Audi S4 is newer by 2 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, 2006 Audi S4 (340 HP @ 7000 RPM) has 15 more horse power than 2004 BMW 545. (325 HP @ 6100 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 2004 BMW 545. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 80 kg more than 2004 BMW 545. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 BMW 545 is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2004 BMW 545. However, in wet, icy, snow, or gravel driving conditions, 2006 Audi S4, being front wheel drive (FWD), will offer much better control with better grip. 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 (450 Nm @ 3600 RPM) has 40 more torque (in Nm) than 2006 Audi S4. (410 Nm @ 3500 RPM). This means 2004 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi S4. 2004 BMW 545 has automatic transmission and 2006 Audi S4 has manual transmission. 2006 Audi S4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 BMW 545 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Audi S4 | 2004 BMW 545 | |
| Make | Audi | BMW |
| Model | S4 | 545 |
| Year Released | 2006 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4398 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 325 HP |
| Engine RPM | 7000 RPM | 6100 RPM |
| Torque | 410 Nm | 450 Nm |
| Torque RPM | 3500 RPM | 3600 RPM |
| Engine Compression Ratio | 11.0:1 | 10.0:1 |
| Acceleration 0-100mph | 5.8 seconds | 6 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1880 kg | 1800 kg |
| Vehicle Length | 4590 mm | 4850 mm |
| Vehicle Width | 1780 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1500 mm |
| Wheelbase Size | 2650 mm | 2830 mm |
| Fuel Consumption Overall | 12.3 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
