2003 Audi A6 vs. 2009 Audi A4
To start off, 2009 Audi A4 is newer by 6 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 3,189 cc (6 cylinders), 2009 Audi A4 is equipped with a bigger engine. In terms of performance, 2009 Audi A4 (252 HP @ 6500 RPM) has 26 more horse power than 2003 Audi A6. (226 HP @ 5800 RPM) In normal driving conditions, 2009 Audi A4 should accelerate faster than 2003 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A6 weights approximately 502 kg more than 2009 Audi A4.
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, 2009 Audi A4 (330 Nm @ 3250 RPM) has 20 more torque (in Nm) than 2003 Audi A6. (310 Nm @ 1700 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6.
Compare all specifications:
| 2003 Audi A6 | 2009 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2003 | 2009 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 3189 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 226 HP | 252 HP |
| Engine RPM | 5800 RPM | 6500 RPM |
| Torque | 310 Nm | 330 Nm |
| Torque RPM | 1700 RPM | 3250 RPM |
| Engine Bore Size | 81 mm | 84.5 mm |
| Engine Stroke Size | 86.4 mm | 92.8 mm |
| Engine Compression Ratio | 9.3:1 | 12.5:1 |
| Top Speed | 245 km/hour | 254 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 6.4 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1662 kg | 1160 kg |
| Vehicle Length | 4800 mm | 4550 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2770 mm | 2660 mm |
| Fuel Consumption Overall | 11.6 L/100km | 10.8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
