2004 Audi A8 vs. 1998 Porsche 911
To start off, 2004 Audi A8 is newer by 6 year(s). Which means there will be less support and parts availability for 1998 Porsche 911. In addition, the cost of maintenance, including insurance, on 1998 Porsche 911 would be higher. At 3,935 cc (8 cylinders), 2004 Audi A8 is equipped with a bigger engine. In terms of performance, 1998 Porsche 911 (443 HP @ 6000 RPM) has 172 more horse power than 2004 Audi A8. (271 HP @ 3750 RPM) In normal driving conditions, 1998 Porsche 911 should accelerate faster than 2004 Audi A8. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi A8 weights approximately 484 kg more than 1998 Porsche 911.
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, 2004 Audi A8 (650 Nm @ 1800 RPM) has 67 more torque (in Nm) than 1998 Porsche 911. (583 Nm @ 4500 RPM). This means 2004 Audi A8 will have an easier job in driving up hills or pulling heavy equipment than 1998 Porsche 911. 2004 Audi A8 has automatic transmission and 1998 Porsche 911 has manual transmission. 1998 Porsche 911 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2004 Audi A8 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2004 Audi A8 | 1998 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A8 | 911 |
| Year Released | 2004 | 1998 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 3935 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 271 HP | 443 HP |
| Engine RPM | 3750 RPM | 6000 RPM |
| Torque | 650 Nm | 583 Nm |
| Torque RPM | 1800 RPM | 4500 RPM |
| Engine Bore Size | 81 mm | 100 mm |
| Engine Stroke Size | 95.5 mm | 76.4 mm |
| Engine Compression Ratio | 18.0:1 | 8.0:1 |
| Top Speed | 250 km/hour | 296 km/hour |
| Drive Type | 4WD | 4WD |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1940 kg | 1456 kg |
| Vehicle Length | 5060 mm | 4270 mm |
| Vehicle Width | 1900 mm | 1800 mm |
| Vehicle Height | 1450 mm | 1270 mm |
| Wheelbase Size | 2950 mm | 2280 mm |
| Fuel Tank Capacity | 90 L | 92 L |
