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 83 more horse power than 2005 Audi A4. (217 HP) In normal driving conditions, 1998 Audi A8 should accelerate faster than 2005 Audi A4.
Let's talk about torque, 1998 Audi A8 (400 Nm) has 100 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 | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 2976 cc | 4172 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 217 HP | 300 HP |
| Torque | 300 Nm | 400 Nm |
| Engine Bore Size | 83 mm | 84.6 mm |
| Engine Stroke Size | 93 mm | 93 mm |
| Engine Compression Ratio | 10.1:1 | 11.0:1 |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Length | 4580 mm | 5040 mm |
| Vehicle Width | 1780 mm | 1890 mm |
| Vehicle Height | 1400 mm | 1450 mm |
| Wheelbase Size | 2660 mm | 2890 mm |
