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 (340 HP) has 120 more horse power than 2005 Audi A4. (220 HP) In normal driving conditions, 1998 Audi A8 should accelerate faster than 2005 Audi A4.
Because 1998 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2005 Audi A4. In wet, icy, snow, or gravel driving conditions, 1998 Audi A8 will offer significantly more control. 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 (556 Nm) has 256 more torque (in Nm) than 2005 Audi A4. (300 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 | 2983 cc | 4172 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 220 HP | 340 HP |
| Torque | 300 Nm | 556 Nm |
| Engine Bore Size | 83.1 mm | 84.7 mm |
| Engine Stroke Size | 93 mm | 93 mm |
| Engine Compression Ratio | 10.1:1 | 11.6:1 |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Manual |
| 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 | 1430 mm |
| Wheelbase Size | 2770 mm | 2890 mm |
