2004 Audi RS6 vs. 1975 Audi Fox
To start off, 2004 Audi RS6 is newer by 29 year(s). Which means there will be less support and parts availability for 1975 Audi Fox. In addition, the cost of maintenance, including insurance, on 1975 Audi Fox would be higher. At 4,163 cc (8 cylinders), 2004 Audi RS6 is equipped with a bigger engine. In terms of performance, 2004 Audi RS6 (444 HP @ 6300 RPM) has 334 more horse power than 1975 Audi Fox. (110 HP @ 6100 RPM). In normal driving conditions, 2004 Audi RS6 should accelerate faster than 1975 Audi Fox. With that said, vehicle weight also plays an important factor in acceleration. 2004 Audi RS6 weights approximately 998 kg more than 1975 Audi Fox. 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 1975 Audi Fox. 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 420 more torque (in Nm) than 1975 Audi Fox. (140 Nm @ 5000 RPM). This means 2004 Audi RS6 will have an easier job in driving up hills or pulling heavy equipment than 1975 Audi Fox.
Compare all specifications:
| 2004 Audi RS6 | 1975 Audi Fox | |
| Make | Audi | Audi |
| Model | RS6 | Fox |
| Year Released | 2004 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1588 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 444 HP | 110 HP |
| Engine RPM | 6300 RPM | 6100 RPM |
| Torque | 560 Nm | 140 Nm |
| Torque RPM | 1950 RPM | 5000 RPM |
| Engine Bore Size | 84.5 mm | 79.5 mm |
| Engine Stroke Size | 93 mm | 80 mm |
| Engine Compression Ratio | 9.3:1 | 9.2:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1910 kg | 912 kg |
| Vehicle Length | 4860 mm | 4390 mm |
| Vehicle Width | 1860 mm | 1690 mm |
| Vehicle Height | 1400 mm | 1370 mm |
| Wheelbase Size | 2770 mm | 2550 mm |
| Fuel Tank Capacity | 82 L | 60 L |
