2006 Audi A4 vs. 2004 Audi A8
To start off, 2006 Audi A4 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Audi A8. In addition, the cost of maintenance, including insurance, on 2004 Audi A8 would be higher. At 2,967 cc (6 cylinders), 2006 Audi A4 is equipped with a bigger engine. In terms of performance, 2004 Audi A8 (230 HP @ 4000 RPM) has 28 more horse power than 2006 Audi A4. (202 HP @ 3500 RPM) In normal driving conditions, 2004 Audi A8 should accelerate faster than 2006 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 555 kg more than 2006 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, both vehicles can yield 450 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:
| 2006 Audi A4 | 2004 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 2006 | 2004 |
| Body Type | Station Wagon | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2967 cc | 2966 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 202 HP | 230 HP |
| Engine RPM | 3500 RPM | 4000 RPM |
| Torque | 450 Nm | 450 Nm |
| Torque RPM | 1400 RPM | 1400 RPM |
| Engine Bore Size | 83 mm | 83 mm |
| Engine Stroke Size | 91.4 mm | 91.4 mm |
| Engine Compression Ratio | 17.0:1 | 17.0:1 |
| Fuel Type | Diesel | Diesel |
| Acceleration 0-100mph | 7.9 seconds | 7.8 seconds |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1275 kg | 1830 kg |
| Vehicle Length | 4590 mm | 5060 mm |
| Vehicle Width | 1780 mm | 1900 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2650 mm | 2950 mm |
| Fuel Consumption Overall | 8.3 L/100km | 8.4 L/100km |
| Fuel Tank Capacity | 66 L | 90 L |
