2008 Audi A4 vs. 2004 Audi A6
To start off, 2008 Audi A4 is newer by 4 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 3,122 cc (6 cylinders), 2008 Audi A4 is equipped with a bigger engine. In terms of performance, 2008 Audi A4 (255 HP @ 6500 RPM) has 117 more horse power than 2004 Audi A6. (138 HP @ 4000 RPM). In normal driving conditions, 2008 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 50 kg more than 2008 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, 2008 Audi A4 (330 Nm @ 3250 RPM) has 10 more torque (in Nm) than 2004 Audi A6. (320 Nm @ 1750 RPM). This means 2008 Audi A4 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A6.
Compare all specifications:
| 2008 Audi A4 | 2004 Audi A6 | |
| Make | Audi | Audi |
| Model | A4 | A6 |
| Year Released | 2008 | 2004 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3122 cc | 1968 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 255 HP | 138 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 330 Nm | 320 Nm |
| Torque RPM | 3250 RPM | 1750 RPM |
| Engine Compression Ratio | 12.5:1 | 19.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Acceleration 0-100mph | 6.8 seconds | 10.3 seconds |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1490 kg | 1540 kg |
| Vehicle Length | 4590 mm | 4920 mm |
| Vehicle Width | 1780 mm | 1860 mm |
| Vehicle Height | 1430 mm | 1470 mm |
| Wheelbase Size | 2660 mm | 2850 mm |
| Fuel Consumption Highway | 8.7 L/100km | 4.8 L/100km |
| Fuel Consumption City | 13.1 L/100km | 8 L/100km |
| Fuel Consumption Overall | 11.2 L/100km | 6 L/100km |
| Fuel Tank Capacity | 70 L | 70 L |
