1999 Audi A8 vs. 2004 Porsche 911
To start off, 2004 Porsche 911 is newer by 5 year(s). Which means there will be less support and parts availability for 1999 Audi A8. In addition, the cost of maintenance, including insurance, on 1999 Audi A8 would be higher. At 3,589 cc (6 cylinders), 2004 Porsche 911 is equipped with a bigger engine. In terms of performance, 2004 Porsche 911 (381 HP @ 8000 RPM) has 191 more horse power than 1999 Audi A8. (190 HP @ 6000 RPM) In normal driving conditions, 2004 Porsche 911 should accelerate faster than 1999 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 1999 Audi A8 weights approximately 215 kg more than 2004 Porsche 911.
Because 1999 Audi A8 is four wheel drive (4WD), it will have significant more traction and grip than 2004 Porsche 911. In wet, icy, snow, or gravel driving conditions, 1999 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, 2004 Porsche 911 (385 Nm) has 105 more torque (in Nm) than 1999 Audi A8. (280 Nm). This means 2004 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1999 Audi A8.
Compare all specifications:
| 1999 Audi A8 | 2004 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 1999 | 2004 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 2771 cc | 3589 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 190 HP | 381 HP |
| Engine RPM | 6000 RPM | 8000 RPM |
| Torque | 280 Nm | 385 Nm |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1635 kg | 1420 kg |
| Vehicle Length | 5040 mm | 4440 mm |
| Vehicle Width | 1890 mm | 1780 mm |
| Vehicle Height | 1440 mm | 1280 mm |
| Wheelbase Size | 2890 mm | 2360 mm |
