2005 Audi A4 vs. 2001 Audi A8
To start off, 2005 Audi A4 is newer by 4 year(s). Which means there will be less support and parts availability for 2001 Audi A8. In addition, the cost of maintenance, including insurance, on 2001 Audi A8 would be higher. At 4,172 cc (8 cylinders), 2001 Audi A8 is equipped with a bigger engine. In terms of performance, 2001 Audi A8 (331 HP @ 6500 RPM) has 114 more horse power than 2005 Audi A4. (217 HP @ 4000 RPM) In normal driving conditions, 2001 Audi A8 should accelerate faster than 2005 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2001 Audi A8 weights approximately 212 kg more than 2005 Audi A4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2001 Audi A8 (430 Nm) has 130 more torque (in Nm) than 2005 Audi A4. (300 Nm). This means 2001 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 | 2001 Audi A8 | |
| Make | Audi | Audi |
| Model | A4 | A8 |
| Year Released | 2005 | 2001 |
| 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 | 5 valves |
| Horse Power | 217 HP | 331 HP |
| Engine RPM | 4000 RPM | 6500 RPM |
| Torque | 300 Nm | 430 Nm |
| Engine Bore Size | 83 mm | 84.5 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 Weight | 1698 kg | 1910 kg |
| Vehicle Length | 4580 mm | 5190 mm |
| Vehicle Width | 1780 mm | 1900 mm |
| Vehicle Height | 1400 mm | 1460 mm |
| Wheelbase Size | 2660 mm | 3080 mm |
| Fuel Tank Capacity | 70 L | 90 L |
