2005 Audi A4 vs. 2007 Audi A6
To start off, 2007 Audi A6 is newer by 2 year(s). Which means there will be less support and parts availability for 2005 Audi A4. In addition, the cost of maintenance, including insurance, on 2005 Audi A4 would be higher. At 5,204 cc (10 cylinders), 2007 Audi A6 is equipped with a bigger engine. In terms of performance, 2007 Audi A6 (430 HP @ 6800 RPM) has 259 more horse power than 2005 Audi A4. (171 HP @ 6200 RPM) In normal driving conditions, 2007 Audi A6 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A6 weights approximately 250 kg more than 2005 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, 2007 Audi A6 (540 Nm) has 315 more torque (in Nm) than 2005 Audi A4. (225 Nm). This means 2007 Audi A6 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 2007 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2005 | 2007 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1786 cc | 5204 cc |
| Engine Cylinders | 4 cylinders | 10 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 171 HP | 430 HP |
| Engine RPM | 6200 RPM | 6800 RPM |
| Torque | 225 Nm | 540 Nm |
| Engine Bore Size | 81 mm | 84.5 mm |
| Engine Stroke Size | 86 mm | 92.8 mm |
| Engine Compression Ratio | 9.3:1 | 12.5:1 |
| Drive Type | 4WD | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1660 kg | 1910 kg |
| Vehicle Length | 4550 mm | 4920 mm |
| Vehicle Width | 1770 mm | 1870 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2770 mm | 2850 mm |
| Fuel Consumption Overall | 10.2 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 63 L | 80 L |
