2003 Audi A4 vs. 2007 BMW M5
To start off, 2007 BMW M5 is newer by 4 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 4,999 cc (10 cylinders), 2007 BMW M5 is equipped with a bigger engine. In terms of performance, 2007 BMW M5 (500 HP @ 7750 RPM) has 387 more horse power than 2003 Audi A4. (113 HP @ 5800 RPM) In normal driving conditions, 2007 BMW M5 should accelerate faster than 2003 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW M5 weights approximately 460 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.
Because 2007 BMW M5 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 2007 BMW M5. However, in wet, icy, snow, or gravel driving conditions, 2003 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, 2007 BMW M5 (520 Nm @ 6100 RPM) has 372 more torque (in Nm) than 2003 Audi A4. (148 Nm @ 3800 RPM). This means 2007 BMW M5 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A4. 2007 BMW M5 has automatic transmission and 2003 Audi A4 has manual transmission. 2003 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 BMW M5 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Audi A4 | 2007 BMW M5 | |
| Make | Audi | BMW |
| Model | A4 | M5 |
| Year Released | 2003 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1595 cc | 4999 cc |
| Engine Cylinders | 4 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 113 HP | 500 HP |
| Engine RPM | 5800 RPM | 7750 RPM |
| Torque | 148 Nm | 520 Nm |
| Torque RPM | 3800 RPM | 6100 RPM |
| Engine Compression Ratio | 10.5:1 | 12.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1295 kg | 1755 kg |
| Vehicle Length | 4590 mm | 4860 mm |
| Vehicle Width | 1770 mm | 1850 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2890 mm |
| Fuel Tank Capacity | 70 L | 70 L |
