2006 Audi A4 vs. 2008 BMW 540
To start off, 2008 BMW 540 is newer by 2 year(s). Which means there will be less support and parts availability for 2006 Audi A4. In addition, the cost of maintenance, including insurance, on 2006 Audi A4 would be higher. At 4,398 cc, 2008 BMW 540 is equipped with a bigger engine. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi A4 weights approximately 35 kg more than 2008 BMW 540.
Because 2006 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2008 BMW 540. In wet, icy, snow, or gravel driving conditions, 2006 Audi A4 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 540 (440 Nm @ 3600 RPM) has 140 more torque (in Nm) than 2006 Audi A4. (300 Nm @ 3200 RPM). This means 2008 BMW 540 will have an easier job in driving up hills or pulling heavy equipment than 2006 Audi A4.
Compare all specifications:
| 2006 Audi A4 | 2008 BMW 540 | |
| Make | Audi | BMW |
| Model | A4 | 540 |
| Year Released | 2006 | 2008 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 4398 cc |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 220 HP | 0 HP |
| Torque | 300 Nm | 440 Nm |
| Torque RPM | 3200 RPM | 3600 RPM |
| Engine Bore Size | 82.5 mm | 92 mm |
| Engine Stroke Size | 92.8 mm | 82.7 mm |
| Engine Compression Ratio | 10.5:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Top Speed | 241 km/hour | 250 km/hour |
| Acceleration 0-100mph | 7.9 seconds | 6.2 seconds |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1770 kg | 1735 kg |
| Vehicle Length | 4580 mm | 5050 mm |
| Vehicle Height | 1400 mm | 1420 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Consumption Overall | 11.8 L/100km | 12.5 L/100km |
| Fuel Tank Capacity | 63 L | 70 L |
