2005 Audi A6 vs. 1981 Porsche 911
To start off, 2005 Audi A6 is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Porsche 911. In addition, the cost of maintenance, including insurance, on 1981 Porsche 911 would be higher. At 3,164 cc (6 cylinders), 1981 Porsche 911 is equipped with a bigger engine. In terms of performance, 1981 Porsche 911 (232 HP @ 5900 RPM) has 64 more horse power than 2005 Audi A6. (168 HP @ 6000 RPM) In normal driving conditions, 1981 Porsche 911 should accelerate faster than 2005 Audi A6. With that said, vehicle weight also plays an important factor in acceleration. 2005 Audi A6 weights approximately 380 kg more than 1981 Porsche 911.
Because 2005 Audi A6 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Porsche 911. In wet, icy, snow, or gravel driving conditions, 2005 Audi A6 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, 1981 Porsche 911 (284 Nm @ 4800 RPM) has 54 more torque (in Nm) than 2005 Audi A6. (230 Nm @ 3200 RPM). This means 1981 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 2005 Audi A6.
Compare all specifications:
| 2005 Audi A6 | 1981 Porsche 911 | |
| Make | Audi | Porsche |
| Model | A6 | 911 |
| Year Released | 2005 | 1981 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Rear |
| Engine Size | 2393 cc | 3164 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | boxer |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 168 HP | 232 HP |
| Engine RPM | 6000 RPM | 5900 RPM |
| Torque | 230 Nm | 284 Nm |
| Torque RPM | 3200 RPM | 4800 RPM |
| Engine Bore Size | 81 mm | 95 mm |
| Engine Stroke Size | 77.4 mm | 74.4 mm |
| Engine Compression Ratio | 11.0:1 | 10.3:1 |
| Top Speed | 218 km/hour | 246 km/hour |
| Acceleration 0-100mph | 9.6 seconds | 6.3 seconds |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1640 kg | 1260 kg |
| Vehicle Length | 4800 mm | 4300 mm |
| Vehicle Width | 1820 mm | 1660 mm |
| Vehicle Height | 1460 mm | 1330 mm |
| Wheelbase Size | 2660 mm | 2270 mm |
| Fuel Tank Capacity | 70 L | 80 L |
