2006 Audi A4 vs. 2004 BMW 545
To start off, 2006 Audi A4 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, 2004 BMW 545 (325 HP @ 6100 RPM) has 164 more horse power than 2006 Audi A4. (161 HP @ 5700 RPM) In normal driving conditions, 2004 BMW 545 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 BMW 545 weights approximately 258 kg more than 2006 Audi A4. 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 A4, 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 225 more torque (in Nm) than 2006 Audi A4. (225 Nm @ 1950 RPM). This means 2004 BMW 545 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4. 2004 BMW 545 has automatic transmission and 2006 Audi A4 has manual transmission. 2006 Audi A4 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 A4 | 2004 BMW 545 | |
| Make | Audi | BMW |
| Model | A4 | 545 |
| Year Released | 2006 | 2004 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 1781 cc | 4398 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 161 HP | 325 HP |
| Engine RPM | 5700 RPM | 6100 RPM |
| Torque | 225 Nm | 450 Nm |
| Torque RPM | 1950 RPM | 3600 RPM |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Top Speed | 226 km/hour | 245 km/hour |
| Acceleration 0-100mph | 9.4 seconds | 6 seconds |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1542 kg | 1800 kg |
| Vehicle Length | 4580 mm | 4850 mm |
| Vehicle Width | 1780 mm | 1850 mm |
| Vehicle Height | 1400 mm | 1500 mm |
| Wheelbase Size | 2660 mm | 2830 mm |
| Fuel Consumption | 7.8 L/100km | 8.2 L/100km |
| Fuel Consumption City | 10.2 L/100km | 16.4 L/100km |
| Fuel Consumption Overall | 8.5 L/100km | 11.2 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
