2003 Audi A4 vs. 2006 BMW M5
To start off, 2006 BMW M5 is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Audi A4. In addition, the cost of maintenance, including insurance, on 2003 Audi A4 would be higher. At 4,998 cc (10 cylinders), 2006 BMW M5 is equipped with a bigger engine. In terms of performance, 2006 BMW M5 (500 HP @ 7750 RPM) has 159 more horse power than 2003 Audi A4. (341 HP @ 7000 RPM) In normal driving conditions, 2006 BMW M5 should accelerate faster than 2003 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 BMW M5 weights approximately 95 kg more than 2003 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are four wheel drive (4WD) - it offers better handling, traction, and control in all driving conditions compared with front wheel drive or rear wheel drive vehicles. 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, 2006 BMW M5 (519 Nm @ 6100 RPM) has 109 more torque (in Nm) than 2003 Audi A4. (410 Nm @ 3500 RPM). This means 2006 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A4.
Compare all specifications:
| 2003 Audi A4 | 2006 BMW M5 | |
| Make | Audi | BMW |
| Model | A4 | M5 |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4998 cc |
| Engine Cylinders | 8 cylinders | 10 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 341 HP | 500 HP |
| Engine RPM | 7000 RPM | 7750 RPM |
| Torque | 410 Nm | 519 Nm |
| Torque RPM | 3500 RPM | 6100 RPM |
| Engine Compression Ratio | 11.0:1 | 12.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1660 kg | 1755 kg |
| Vehicle Length | 4550 mm | 4860 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2890 mm |
| Fuel Tank Capacity | 66 L | 70 L |
