2004 Audi A4 vs. 2003 Audi A6
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 2,982 cc (6 cylinders), 2004 Audi A4 is equipped with a bigger engine. In terms of performance, 2004 Audi A4 (220 HP @ 6300 RPM) has 71 more horse power than 2003 Audi A6. (149 HP @ 6000 RPM). In normal driving conditions, 2004 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 110 kg more than 2004 Audi A4.
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, 2004 Audi A4 (300 Nm @ 3200 RPM) has 65 more torque (in Nm) than 2003 Audi A6. (235 Nm @ 1750 RPM). This means 2004 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2003 Audi A6.
Compare all specifications:
| 2004 Audi A4 | 2003 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2004 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2982 cc | 1799 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 5 valves |
| Horse Power | 220 HP | 149 HP |
| Engine RPM | 6300 RPM | 6000 RPM |
| Torque | 300 Nm | 235 Nm |
| Torque RPM | 3200 RPM | 1750 RPM |
| Engine Bore Size | 83 mm | 81 mm |
| Engine Stroke Size | 93 mm | 86.4 mm |
| Engine Compression Ratio | 10.1:1 | 10.0:1 |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1540 kg |
| Vehicle Length | 4550 mm | 4800 mm |
| Vehicle Width | 1780 mm | 1820 mm |
| Vehicle Height | 1430 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 2770 mm |
| Fuel Tank Capacity | 70 L | 70 L |
