2005 Audi A6 vs. 2008 Audi A4
To start off, 2008 Audi A4 is newer by 3 year(s). Which means there will be less support and parts availability for 2005 Audi A6. In addition, the cost of maintenance, including insurance, on 2005 Audi A6 would be higher. At 2,393 cc (6 cylinders), 2005 Audi A6 is equipped with a bigger engine. In terms of performance, 2005 Audi A6 (178 HP @ 4000 RPM) has 50 more horse power than 2008 Audi A4. (128 HP @ 5700 RPM). In normal driving conditions, 2005 Audi A6 should accelerate faster than 2008 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 390 kg more than 2008 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2008 Audi A4. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 Audi A6 (370 Nm @ 1500 RPM) has 175 more torque (in Nm) than 2008 Audi A4. (195 Nm @ 3300 RPM). This means 2005 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2008 Audi A4.
Compare all specifications:
| 2005 Audi A6 | 2008 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2005 | 2008 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2393 cc | 1984 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 178 HP | 128 HP |
| Engine RPM | 4000 RPM | 5700 RPM |
| Torque | 370 Nm | 195 Nm |
| Torque RPM | 1500 RPM | 3300 RPM |
| Engine Bore Size | 78.3 mm | 82.6 mm |
| Engine Stroke Size | 86.4 mm | 92.8 mm |
| Engine Compression Ratio | 19.0:1 | 10.3:1 |
| Fuel Type | Diesel | Gasoline - Premium |
| Acceleration 0-100mph | 9.1 seconds | 9.9 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1730 kg | 1340 kg |
| Vehicle Length | 4800 mm | 4590 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2660 mm | 2650 mm |
| Fuel Consumption Overall | 8.3 L/100km | 8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
