2003 Audi RS6 vs. 1999 Audi A4
To start off, 2003 Audi RS6 is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Audi A4. In addition, the cost of maintenance, including insurance, on 1999 Audi A4 would be higher. At 4,163 cc (8 cylinders), 2003 Audi RS6 is equipped with a bigger engine. In terms of performance, 2003 Audi RS6 (444 HP @ 6300 RPM) has 321 more horse power than 1999 Audi A4. (123 HP @ 5800 RPM). In normal driving conditions, 2003 Audi RS6 should accelerate faster than 1999 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi RS6 weights approximately 554 kg more than 1999 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, 2003 Audi RS6 (560 Nm @ 1950 RPM) has 392 more torque (in Nm) than 1999 Audi A4. (168 Nm @ 3500 RPM). This means 2003 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A4.
Compare all specifications:
| 2003 Audi RS6 | 1999 Audi A4 | |
| Make | Audi | Audi |
| Model | RS6 | A4 |
| Year Released | 2003 | 1999 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1781 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 444 HP | 123 HP |
| Engine RPM | 6300 RPM | 5800 RPM |
| Torque | 560 Nm | 168 Nm |
| Torque RPM | 1950 RPM | 3500 RPM |
| Engine Bore Size | 84.5 mm | 81 mm |
| Engine Stroke Size | 93 mm | 86.4 mm |
| Engine Compression Ratio | 9.3:1 | 10.3:1 |
| Top Speed | 250 km/hour | 201 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1910 kg | 1356 kg |
| Vehicle Length | 4860 mm | 4480 mm |
| Vehicle Width | 1860 mm | 1740 mm |
| Vehicle Height | 1460 mm | 1420 mm |
| Wheelbase Size | 2760 mm | 2610 mm |
| Fuel Tank Capacity | 82 L | 60 L |
