2004 Audi RS6 vs. 1981 Porsche 928
To start off, 2004 Audi RS6 is newer by 23 year(s). Which means there will be less support and parts availability for 1981 Porsche 928. In addition, the cost of maintenance, including insurance, on 1981 Porsche 928 would be higher. At 4,472 cc (8 cylinders), 1981 Porsche 928 is equipped with a bigger engine. In terms of performance, 2004 Audi RS6 (444 HP @ 6300 RPM) has 206 more horse power than 1981 Porsche 928. (238 HP @ 5250 RPM). In normal driving conditions, 2004 Audi RS6 should accelerate faster than 1981 Porsche 928. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi RS6 weights approximately 460 kg more than 1981 Porsche 928. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2004 Audi RS6 is four wheel drive (4WD), it will have significant more traction and grip than 1981 Porsche 928. In wet, icy, snow, or gravel driving conditions, 2004 Audi RS6 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 Audi RS6 (560 Nm @ 1950 RPM) has 204 more torque (in Nm) than 1981 Porsche 928. (356 Nm @ 3600 RPM). This means 2004 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1981 Porsche 928.
Compare all specifications:
| 2004 Audi RS6 | 1981 Porsche 928 | |
| Make | Audi | Porsche |
| Model | RS6 | 928 |
| Year Released | 2004 | 1981 |
| Body Type | Station Wagon | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 4472 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 5 valves | 2 valves |
| Horse Power | 444 HP | 238 HP |
| Engine RPM | 6300 RPM | 5250 RPM |
| Torque | 560 Nm | 356 Nm |
| Torque RPM | 1950 RPM | 3600 RPM |
| Engine Bore Size | 84.5 mm | 95 mm |
| Engine Stroke Size | 93 mm | 78.9 mm |
| Engine Compression Ratio | 9.3:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Top Speed | 250 km/hour | 229 km/hour |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1910 kg | 1450 kg |
| Vehicle Length | 4860 mm | 4450 mm |
| Vehicle Width | 1860 mm | 1840 mm |
| Vehicle Height | 1400 mm | 1320 mm |
| Wheelbase Size | 2770 mm | 2510 mm |
| Fuel Tank Capacity | 82 L | 85 L |
