2003 Audi A6 vs. 2004 Audi A4
To start off, 2004 Audi A4 is newer by 1 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 2,671 cc (6 cylinders), 2003 Audi A6 is equipped with a bigger engine. In terms of performance, 2003 Audi A6 (226 HP @ 5800 RPM) has 89 more horse power than 2004 Audi A4. (137 HP @ 4000 RPM). In normal driving conditions, 2003 Audi A6 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2003 Audi A6 weights approximately 180 kg more than 2004 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Audi A4. In wet, icy, snow, or gravel driving conditions, 2003 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, both vehicles can yield 310 Nm of torque. So under normal driving conditions, the ability to climb up hills and pull heavy equipment should be relatively similar for both vehicles.
Compare all specifications:
| 2003 Audi A6 | 2004 Audi A4 | |
| Make | Audi | Audi |
| Model | A6 | A4 |
| Year Released | 2003 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 1968 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 226 HP | 137 HP |
| Engine RPM | 5800 RPM | 4000 RPM |
| Torque | 310 Nm | 310 Nm |
| Torque RPM | 1700 RPM | 1740 RPM |
| Engine Bore Size | 81 mm | 81 mm |
| Engine Stroke Size | 86.4 mm | 95.5 mm |
| Engine Compression Ratio | 9.3:1 | 18.0:1 |
| Top Speed | 245 km/hour | 201 km/hour |
| Acceleration 0-100mph | 7.3 seconds | 10.2 seconds |
| Drive Type | 4WD | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1662 kg | 1482 kg |
| Vehicle Length | 4800 mm | 4590 mm |
| Vehicle Width | 1820 mm | 1780 mm |
| Vehicle Height | 1460 mm | 1430 mm |
| Wheelbase Size | 2770 mm | 2580 mm |
| Fuel Consumption Highway | 8.8 L/100km | 4.7 L/100km |
| Fuel Consumption City | 16.6 L/100km | 7.7 L/100km |
| Fuel Consumption Overall | 11.6 L/100km | 5.8 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
