2009 Audi A4 vs. 2004 Audi A6
To start off, 2009 Audi A4 is newer by 5 year(s). Which means there will be less support and parts availability for 2004 Audi A6. In addition, the cost of maintenance, including insurance, on 2004 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 72 more horse power than 2004 Audi A6. (180 HP @ 6000 RPM). In normal driving conditions, 2009 Audi A4 should accelerate faster than 2004 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A6 weights approximately 767 kg more than 2009 Audi A4.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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 95 more torque (in Nm) than 2004 Audi A6. (235 Nm @ 3000 RPM). This means 2009 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2009 Audi A4 | 2004 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2009 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 3189 cc | 2496 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 252 HP | 180 HP |
| Engine RPM | 6500 RPM | 6000 RPM |
| Torque | 330 Nm | 235 Nm |
| Torque RPM | 3250 RPM | 3000 RPM |
| Engine Bore Size | 84.5 mm | 81 mm |
| Engine Stroke Size | 92.8 mm | 77.4 mm |
| Engine Compression Ratio | 12.5:1 | 10.3:1 |
| Top Speed | 228 km/hour | 221 km/hour |
| Acceleration 0-100mph | 6.8 seconds | 9.5 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 895 kg | 1662 kg |
| Vehicle Length | 4550 mm | 4940 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2660 mm |
| Fuel Consumption Overall | 9.5 L/100km | 9.6 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
