2005 Audi RS4 vs. 1999 BMW 540
To start off, 2005 Audi RS4 is newer by 6 year(s). Which means there will be less support and parts availability for 1999 BMW 540. In addition, the cost of maintenance, including insurance, on 1999 BMW 540 would be higher. At 4,398 cc (8 cylinders), 1999 BMW 540 is equipped with a bigger engine. In terms of performance, 2005 Audi RS4 (376 HP @ 6300 RPM) has 94 more horse power than 1999 BMW 540. (282 HP @ 7400 RPM). In normal driving conditions, 2005 Audi RS4 should accelerate faster than 1999 BMW 540. With that said, vehicle weight also plays an important factor in acceleration. 1999 BMW 540 weights approximately 186 kg more than 2005 Audi RS4.
Because 2005 Audi RS4 is four wheel drive (4WD), it will have significant more traction and grip than 1999 BMW 540. In wet, icy, snow, or gravel driving conditions, 2005 Audi RS4 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, 2005 Audi RS4 (449 Nm) has 10 more torque (in Nm) than 1999 BMW 540. (439 Nm). This means 2005 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 1999 BMW 540.
Compare all specifications:
| 2005 Audi RS4 | 1999 BMW 540 | |
| Make | Audi | BMW |
| Model | RS4 | 540 |
| Year Released | 2005 | 1999 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 4398 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 376 HP | 282 HP |
| Engine RPM | 6300 RPM | 7400 RPM |
| Torque | 449 Nm | 439 Nm |
| Engine Compression Ratio | 12.5:1 | 10.0:1 |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1585 kg | 1771 kg |
| Vehicle Length | 4600 mm | 4780 mm |
| Vehicle Width | 1820 mm | 1810 mm |
| Vehicle Height | 1420 mm | 1440 mm |
| Wheelbase Size | 2610 mm | 2840 mm |
