2005 Audi RS6 vs. 1998 Porsche 911
To start off, 2005 Audi RS6 is newer by 7 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 4,163 cc (8 cylinders), 2005 Audi RS6 is equipped with a bigger engine. In terms of performance, 2005 Audi RS6 (444 HP @ 6300 RPM) has 148 more horse power than 1998 Porsche 911. (296 HP @ 6800 RPM). In normal driving conditions, 2005 Audi RS6 should accelerate faster than 1998 Porsche 911. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi RS6 weights approximately 490 kg more than 1998 Porsche 911. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 Audi RS6 (560 Nm @ 1950 RPM) has 210 more torque (in Nm) than 1998 Porsche 911. (350 Nm @ 4600 RPM). This means 2005 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1998 Porsche 911. 1998 Porsche 911 has automatic transmission and 2005 Audi RS6 has manual transmission. 2005 Audi RS6 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 1998 Porsche 911 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Audi RS6 | 1998 Porsche 911 | |
| Make | Audi | Porsche |
| Model | RS6 | 911 |
| Year Released | 2005 | 1998 |
| Body Type | Sedan | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4163 cc | 3387 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 444 HP | 296 HP |
| Engine RPM | 6300 RPM | 6800 RPM |
| Torque | 560 Nm | 350 Nm |
| Torque RPM | 1950 RPM | 4600 RPM |
| Engine Bore Size | 84.5 mm | 96 mm |
| Engine Stroke Size | 93 mm | 78 mm |
| Engine Compression Ratio | 9.0:1 | 11.3:1 |
| Drive Type | 4WD | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1910 kg | 1420 kg |
| Vehicle Length | 4800 mm | 4440 mm |
| Vehicle Width | 1820 mm | 1770 mm |
| Vehicle Height | 1460 mm | 1310 mm |
| Wheelbase Size | 2660 mm | 2360 mm |
| Fuel Tank Capacity | 70 L | 63 L |
