1998 Audi A8 vs. 2005 Porsche 911
To start off, 2005 Porsche 911 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, 2005 Porsche 911 (414 HP) has 74 more horse power than 1998 Audi A8. (340 HP) In normal driving conditions, 2005 Porsche 911 should accelerate faster than 1998 Audi A8.
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, 2005 Porsche 911 (560 Nm) has 4 more torque (in Nm) than 1998 Audi A8. (556 Nm). This means 2005 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1998 Audi A8.
Compare all specifications:
| 1998 Audi A8 | 2005 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 1998 | 2005 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 4172 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 414 HP |
| Torque | 556 Nm | 560 Nm |
| Engine Bore Size | 84.7 mm | 100 mm |
| Engine Stroke Size | 93 mm | 76.4 mm |
| Engine Compression Ratio | 11.6:1 | 9.4:1 |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Manual |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Length | 5040 mm | 4440 mm |
| Vehicle Width | 1890 mm | 1840 mm |
| Vehicle Height | 1430 mm | 1300 mm |
| Wheelbase Size | 2890 mm | 2360 mm |
