2003 Audi A6 vs. 2008 Audi A8
To start off, 2008 Audi A8 is newer by 5 year(s). Which means there will be less support and parts availability for 2003 Audi A6. In addition, the cost of maintenance, including insurance, on 2003 Audi A6 would be higher. At 5,998 cc, 2008 Audi A8 is equipped with a bigger engine. In terms of performance, 2008 Audi A8 (450 HP @ 6200 RPM) has 224 more horse power than 2003 Audi A6. (226 HP @ 5800 RPM) In normal driving conditions, 2008 Audi A8 should accelerate faster than 2003 Audi A6.
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, 2008 Audi A8 (580 Nm @ 4000 RPM) has 270 more torque (in Nm) than 2003 Audi A6. (310 Nm @ 1700 RPM). This means 2008 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6. 2008 Audi A8 has automatic transmission and 2003 Audi A6 has manual transmission. 2003 Audi A6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Audi A6 | 2008 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2003 | 2008 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 5998 cc |
| Engine Type | V | W |
| Horse Power | 226 HP | 450 HP |
| Engine RPM | 5800 RPM | 6200 RPM |
| Torque | 310 Nm | 580 Nm |
| Torque RPM | 1700 RPM | 4000 RPM |
| Engine Bore Size | 81 mm | 84 mm |
| Engine Stroke Size | 86.4 mm | 90.2 mm |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4800 mm | 5200 mm |
| Vehicle Width | 1820 mm | 1900 mm |
| Vehicle Height | 1460 mm | 1460 mm |
| Wheelbase Size | 2770 mm | 3080 mm |
| Fuel Consumption | 8.8 L/100km | 11.2 L/100km |
| Fuel Consumption City | 16.6 L/100km | 15.7 L/100km |
| Fuel Consumption Overall | 11.6 L/100km | 13.8 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
