2005 Audi A4 vs. 1998 Audi A8
To start off, 2005 Audi A4 is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Audi A8. In addition, the cost of maintenance, including insurance, on 1998 Audi A8 would be higher. At 4,172 cc (8 cylinders), 1998 Audi A8 is equipped with a bigger engine. In terms of performance, 1998 Audi A8 (300 HP) has 123 more horse power than 2005 Audi A4. (177 HP) In normal driving conditions, 1998 Audi A8 should accelerate faster than 2005 Audi A4.
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, 1998 Audi A8 (400 Nm) has 29 more torque (in Nm) than 2005 Audi A4. (371 Nm). This means 1998 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A4.
Compare all specifications:
| 2005 Audi A4 | 1998 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 2005 | 1998 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2496 cc | 4172 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 177 HP | 300 HP |
| Torque | 371 Nm | 400 Nm |
| Engine Bore Size | 78.3 mm | 84.6 mm |
| Engine Stroke Size | 86.4 mm | 93 mm |
| Top Speed | 225 km/hour | 250 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Length | 4550 mm | 5040 mm |
| Vehicle Width | 1780 mm | 1890 mm |
| Vehicle Height | 1430 mm | 1450 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
