2004 Audi RS4 vs. 2005 Audi A6
To start off, 2005 Audi A6 is newer by 1 year(s). Which means there will be less support and parts availability for 2004 Audi RS4. In addition, the cost of maintenance, including insurance, on 2004 Audi RS4 would be higher. At 4,172 cc (8 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2004 Audi RS4 (376 HP @ 6300 RPM) has 80 more horse power than 2005 Audi A6. (296 HP @ 6200 RPM). In normal driving conditions, 2004 Audi RS4 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 230 kg more than 2004 Audi RS4.
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, 2004 Audi RS4 (450 Nm @ 2500 RPM) has 40 more torque (in Nm) than 2005 Audi A6. (410 Nm @ 3000 RPM). This means 2004 Audi RS4 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6. 2005 Audi A6 has automatic transmission and 2004 Audi RS4 has manual transmission. 2004 Audi RS4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Audi A6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi RS4 | 2005 Audi A6 | |
| Make | Audi | Audi |
| Model | RS4 | A6 |
| Year Released | 2004 | 2005 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 4172 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 376 HP | 296 HP |
| Engine RPM | 6300 RPM | 6200 RPM |
| Torque | 450 Nm | 410 Nm |
| Torque RPM | 2500 RPM | 3000 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1585 kg | 1815 kg |
| Vehicle Length | 4480 mm | 4840 mm |
| Vehicle Width | 1740 mm | 1860 mm |
| Vehicle Height | 1450 mm | 1460 mm |
| Wheelbase Size | 2610 mm | 2470 mm |
| Fuel Tank Capacity | 55 L | 82 L |
