2004 Audi A4 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 A4. In addition, the cost of maintenance, including insurance, on 2004 Audi A4 would be higher. At 2,983 cc (6 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (255 HP @ 6300 RPM) has 58 more horse power than 2004 Audi A4. (197 HP @ 5100 RPM) In normal driving conditions, 2005 Audi A6 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 345 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 front wheel drive (FWD). Which offers better traction when its slippery than 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, 2005 Audi A6 (320 Nm) has 40 more torque (in Nm) than 2004 Audi A4. (280 Nm). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4.
Compare all specifications:
| 2004 Audi A4 | 2005 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2004 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 2983 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 197 HP | 255 HP |
| Engine RPM | 5100 RPM | 6300 RPM |
| Torque | 280 Nm | 320 Nm |
| Engine Compression Ratio | 10.5:1 | 12.5:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1450 kg | 1795 kg |
| Vehicle Length | 4590 mm | 4920 mm |
| Vehicle Width | 1780 mm | 2020 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2430 mm | 2760 mm |
| Fuel Tank Capacity | 70 L | 80 L |
