1998 Opel Signum vs. 1975 Audi Fox
To start off, 1998 Opel Signum is newer by 23 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 1,994 cc (4 cylinders), 1998 Opel Signum is equipped with a bigger engine. In terms of performance, 1998 Opel Signum (148 HP @ 4000 RPM) has 73 more horse power than 1975 Audi Fox. (75 HP @ 5500 RPM). In normal driving conditions, 1998 Opel Signum should accelerate faster than 1975 Audi Fox. With that said, vehicle weight also plays an important factor in acceleration. 1975 Audi Fox weights approximately 57 kg more than 1998 Opel Signum.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than 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, 1998 Opel Signum (185 Nm @ 2000 RPM) has 73 more torque (in Nm) than 1975 Audi Fox. (112 Nm @ 3200 RPM). This means 1998 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1975 Audi Fox.
Compare all specifications:
| 1998 Opel Signum | 1975 Audi Fox | |
| Make | Opel | Audi |
| Model | Signum | Fox |
| Year Released | 1998 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 1994 cc | 1588 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 148 HP | 75 HP |
| Engine RPM | 4000 RPM | 5500 RPM |
| Torque | 185 Nm | 112 Nm |
| Torque RPM | 2000 RPM | 3200 RPM |
| Engine Bore Size | 82 mm | 79.5 mm |
| Engine Stroke Size | 90.4 mm | 80 mm |
| Engine Compression Ratio | 18.0:1 | 8.2:1 |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 855 kg | 912 kg |
| Vehicle Length | 4640 mm | 4390 mm |
| Vehicle Width | 1800 mm | 1690 mm |
| Vehicle Height | 1470 mm | 1370 mm |
| Wheelbase Size | 2530 mm | 2550 mm |
| Fuel Tank Capacity | 60 L | 60 L |
