2004 Audi A4 vs. 2006 Audi RS4
To start off, 2006 Audi RS4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Audi A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 4,163 cc (8 cylinders), 2006 Audi RS4 is equipped with a bigger engine. In terms of performance, 2006 Audi RS4 (420 HP @ 8250 RPM) has 223 more horse power than 2004 Audi A4. (197 HP @ 5100 RPM) In normal driving conditions, 2006 Audi RS4 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi RS4 weights approximately 14 kg more than 2004 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 Audi RS4 (583 Nm @ 5500 RPM) has 303 more torque (in Nm) than 2004 Audi A4. (280 Nm @ 1800 RPM). This means 2006 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4. 2004 Audi A4 has automatic transmission and 2006 Audi RS4 has manual transmission. 2006 Audi RS4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi A4 | 2006 Audi RS4 | |
| Make | Audi | Audi |
| Model | A4 | RS4 |
| Year Released | 2004 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 4163 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 197 HP | 420 HP |
| Engine RPM | 5100 RPM | 8250 RPM |
| Torque | 280 Nm | 583 Nm |
| Torque RPM | 1800 RPM | 5500 RPM |
| Top Speed | 235 km/hour | 245 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1535 kg | 1549 kg |
| Vehicle Length | 4590 mm | 360 mm |
| Vehicle Height | 1430 mm | 360 mm |
| Wheelbase Size | 2470 mm | 360 mm |
