2005 Audi A8 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 A8. In addition, the cost of maintenance, including insurance, on 2005 Audi A8 would be higher. At 3,934 cc (8 cylinders), 2005 Audi A8 is equipped with a bigger engine. In terms of performance, 2005 Audi A8 (276 HP @ 3750 RPM) has 21 more horse power than 2007 Audi A6. (255 HP @ 6500 RPM). In normal driving conditions, 2005 Audi A8 should accelerate faster than 2007 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A8 weights approximately 60 kg more than 2007 Audi A6. 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, 2005 Audi A8 (650 Nm @ 1800 RPM) has 320 more torque (in Nm) than 2007 Audi A6. (330 Nm @ 3250 RPM). This means 2005 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A6.
Compare all specifications:
| 2005 Audi A8 | 2007 Audi A6 | |
| Make | Audi | Audi |
| Model | A8 | A6 |
| Year Released | 2005 | 2007 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3934 cc | 3123 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 276 HP | 255 HP |
| Engine RPM | 3750 RPM | 6500 RPM |
| Torque | 650 Nm | 330 Nm |
| Torque RPM | 1800 RPM | 3250 RPM |
| Engine Compression Ratio | 18.0:1 | 11.3:1 |
| Fuel Type | Diesel | Diesel |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1940 kg | 1880 kg |
| Vehicle Length | 5060 mm | 4920 mm |
| Vehicle Width | 1900 mm | 2020 mm |
| Vehicle Height | 1450 mm | 1460 mm |
| Wheelbase Size | 2950 mm | 2850 mm |
| Fuel Consumption Overall | 9.7 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 90 L | 80 L |
