1999 Opel Signum vs. 1977 Audi Fox
To start off, 1999 Opel Signum is newer by 22 year(s). Which means there will be less support and parts availability for 1977 Audi Fox. In addition, the cost of maintenance, including insurance, on 1977 Audi Fox would be higher. At 1,995 cc (4 cylinders), 1999 Opel Signum is equipped with a bigger engine. In terms of performance, 1999 Opel Signum (99 HP @ 3120 RPM) has 24 more horse power than 1977 Audi Fox. (75 HP @ 5500 RPM). In normal driving conditions, 1999 Opel Signum should accelerate faster than 1977 Audi Fox. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Signum weights approximately 683 kg more than 1977 Audi Fox. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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, 1999 Opel Signum (240 Nm @ 1500 RPM) has 128 more torque (in Nm) than 1977 Audi Fox. (112 Nm @ 3200 RPM). This means 1999 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1977 Audi Fox.
Compare all specifications:
| 1999 Opel Signum | 1977 Audi Fox | |
| Make | Opel | Audi |
| Model | Signum | Fox |
| Year Released | 1999 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 1588 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 99 HP | 75 HP |
| Engine RPM | 3120 RPM | 5500 RPM |
| Torque | 240 Nm | 112 Nm |
| Torque RPM | 1500 RPM | 3200 RPM |
| Engine Bore Size | 84 mm | 79.5 mm |
| Engine Stroke Size | 90 mm | 80 mm |
| Engine Compression Ratio | 18.5:1 | 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 | 1595 kg | 912 kg |
| Vehicle Length | 4640 mm | 4390 mm |
| Vehicle Width | 1800 mm | 1690 mm |
| Vehicle Height | 1470 mm | 1370 mm |
| Wheelbase Size | 2840 mm | 2550 mm |
| Fuel Tank Capacity | 60 L | 60 L |
