2001 Audi A8 vs. 1999 Porsche 911
To start off, 2001 Audi A8 is newer by 2 year(s). Which means there will be less support and parts availability for 1999 Porsche 911. In addition, the cost of maintenance, including insurance, on 1999 Porsche 911 would be higher. At 3,695 cc (8 cylinders), 2001 Audi A8 is equipped with a bigger engine. In terms of performance, 1999 Porsche 911 (414 HP @ 6200 RPM) has 158 more horse power than 2001 Audi A8. (256 HP @ 6000 RPM) In normal driving conditions, 1999 Porsche 911 should accelerate faster than 2001 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2001 Audi A8 weights approximately 245 kg more than 1999 Porsche 911.
Because 1999 Porsche 911 is four wheel drive (4WD), it will have significant more traction and grip than 2001 Audi A8. In wet, icy, snow, or gravel driving conditions, 1999 Porsche 911 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, 1999 Porsche 911 (560 Nm @ 2700 RPM) has 210 more torque (in Nm) than 2001 Audi A8. (350 Nm @ 3250 RPM). This means 1999 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2001 Audi A8.
Compare all specifications:
| 2001 Audi A8 | 1999 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 2001 | 1999 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3695 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | in-line | boxer |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 256 HP | 414 HP |
| Engine RPM | 6000 RPM | 6200 RPM |
| Torque | 350 Nm | 560 Nm |
| Torque RPM | 3250 RPM | 2700 RPM |
| Engine Bore Size | 84.5 mm | 100 mm |
| Engine Stroke Size | 82.4 mm | 76.4 mm |
| Engine Compression Ratio | 11.0:1 | 9.4:1 |
| Top Speed | 250 km/hour | 298 km/hour |
| Acceleration 0-100mph | 8.1 seconds | 4.9 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1830 kg | 1585 kg |
| Vehicle Length | 5040 mm | 4440 mm |
| Vehicle Width | 1890 mm | 1840 mm |
| Vehicle Height | 1440 mm | 1300 mm |
| Wheelbase Size | 2410 mm | 2360 mm |
| Fuel Tank Capacity | 90 L | 64 L |
