2004 Audi A8 vs. 2004 Audi A4
To start off, both 2004 Audi A8 and 2004 Audi A4 were released in the same year (2004). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 5,998 cc, 2004 Audi A8 is equipped with a bigger engine. In terms of performance, 2004 Audi A8 (450 HP @ 6300 RPM) has 289 more horse power than 2004 Audi A4. (161 HP @ 5700 RPM). In normal driving conditions, 2004 Audi A8 should accelerate faster than 2004 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 465 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.
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, 2004 Audi A8 (560 Nm @ 4000 RPM) has 330 more torque (in Nm) than 2004 Audi A4. (230 Nm @ 1950 RPM). This means 2004 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2004 Audi A4. 2004 Audi A8 has automatic transmission and 2004 Audi A4 has manual transmission. 2004 Audi A4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi A8 | 2004 Audi A4 | |
| Make | Audi | Audi |
| Model | A8 | A4 |
| Year Released | 2004 | 2004 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 5998 cc | 1781 cc |
| Engine Type | W | in-line |
| Valves per Cylinder | 4 valves | 5 valves |
| Horse Power | 450 HP | 161 HP |
| Engine RPM | 6300 RPM | 5700 RPM |
| Torque | 560 Nm | 230 Nm |
| Torque RPM | 4000 RPM | 1950 RPM |
| Engine Bore Size | 84.1 mm | 81 mm |
| Engine Stroke Size | 90.2 mm | 86.4 mm |
| Engine Compression Ratio | 11.0:1 | 9.3:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1995 kg | 1530 kg |
| Vehicle Length | 5060 mm | 4550 mm |
| Vehicle Width | 1900 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2950 mm | 2580 mm |
