2009 Audi A6 vs. 2003 Audi A8
To start off, 2009 Audi A6 is newer by 6 year(s). Which means there will be less support and parts availability for 2003 Audi A8. In addition, the cost of maintenance, including insurance, on 2003 Audi A8 would be higher. At 3,129 cc (6 cylinders), 2009 Audi A6 is equipped with a bigger engine. In terms of performance, 2009 Audi A6 (342 HP @ 6500 RPM) has 125 more horse power than 2003 Audi A8. (217 HP @ 6300 RPM). In normal driving conditions, 2009 Audi A6 should accelerate faster than 2003 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A8 weights approximately 315 kg more than 2009 Audi A6.
Because 2009 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Audi A8. In wet, icy, snow, or gravel driving conditions, 2009 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, 2003 Audi A8 (300 Nm @ 8200 RPM) has 57 more torque (in Nm) than 2009 Audi A6. (243 Nm @ 3250 RPM). This means 2003 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2009 Audi A6. 2009 Audi A6 has automatic transmission and 2003 Audi A8 has manual transmission. 2003 Audi A8 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Audi A6 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Audi A6 | 2003 Audi A8 | |
| Make | Audi | Audi |
| Model | A6 | A8 |
| Year Released | 2009 | 2003 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3129 cc | 2976 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 342 HP | 217 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 243 Nm | 300 Nm |
| Torque RPM | 3250 RPM | 8200 RPM |
| Engine Bore Size | 84.6 mm | 82.6 mm |
| Engine Stroke Size | 92.7 mm | 92.8 mm |
| Engine Compression Ratio | 12.5:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Acceleration 0-100mph | 7.3 seconds | 8.3 seconds |
| Drive Type | 4WD | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1540 kg | 1855 kg |
| Vehicle Length | 4920 mm | 5190 mm |
| Vehicle Width | 1470 mm | 1900 mm |
| Vehicle Height | 1860 mm | 1460 mm |
| Wheelbase Size | 2850 mm | 3080 mm |
| Fuel Consumption Overall | 15.5 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 70 L | 90 L |
