2004 Audi A4 vs. 2008 Audi A6
To start off, 2008 Audi A6 is newer by 4 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 2,981 cc (6 cylinders), 2004 Audi A4 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (217 HP @ 4000 RPM) has 39 more horse power than 2008 Audi A6. (178 HP @ 3300 RPM). In normal driving conditions, 2004 Audi A4 should accelerate faster than 2008 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi A6 weights approximately 145 kg more than 2004 Audi A4.
Because 2008 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A4. In wet, icy, snow, or gravel driving conditions, 2008 Audi A6 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, 2008 Audi A6 (380 Nm) has 80 more torque (in Nm) than 2004 Audi A4. (300 Nm). This means 2008 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 | 2008 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2004 | 2008 |
| Body Type | Convertible | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2981 cc | 2698 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 178 HP |
| Engine RPM | 4000 RPM | 3300 RPM |
| Torque | 300 Nm | 380 Nm |
| Engine Bore Size | 83 mm | 83 mm |
| Engine Stroke Size | 93 mm | 83.1 mm |
| Engine Compression Ratio | 10.1:1 | 17.5:1 |
| Drive Type | Front | 4WD |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1730 kg | 1875 kg |
| Vehicle Length | 4580 mm | 4940 mm |
| Vehicle Width | 1780 mm | 1870 mm |
| Vehicle Height | 1400 mm | 1530 mm |
| Wheelbase Size | 2660 mm | 2840 mm |
| Fuel Consumption Overall | 10.2 L/100km | 8.7 L/100km |
| Fuel Tank Capacity | 70 L | 80 L |
