1999 Opel Signum vs. 1979 Opel Kadett
To start off, 1999 Opel Signum is newer by 20 year(s). Which means there will be less support and parts availability for 1979 Opel Kadett. In addition, the cost of maintenance, including insurance, on 1979 Opel Kadett would be higher. At 3,175 cc (6 cylinders), 1999 Opel Signum is equipped with a bigger engine. In terms of performance, 1999 Opel Signum (208 HP @ 6200 RPM) has 118 more horse power than 1979 Opel Kadett. (90 HP @ 5800 RPM). In normal driving conditions, 1999 Opel Signum should accelerate faster than 1979 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Signum weights approximately 640 kg more than 1979 Opel Kadett. 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 (300 Nm @ 4000 RPM) has 174 more torque (in Nm) than 1979 Opel Kadett. (126 Nm @ 3800 RPM). This means 1999 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1979 Opel Kadett.
Compare all specifications:
| 1999 Opel Signum | 1979 Opel Kadett | |
| Make | Opel | Opel |
| Model | Signum | Kadett |
| Year Released | 1999 | 1979 |
| Engine Position | Front | Front |
| Engine Size | 3175 cc | 1584 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 208 HP | 90 HP |
| Engine RPM | 6200 RPM | 5800 RPM |
| Torque | 300 Nm | 126 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Engine Bore Size | 87.5 mm | 80 mm |
| Engine Stroke Size | 88 mm | 79.5 mm |
| Engine Compression Ratio | 10.0:1 | 9.2:1 |
| Top Speed | 237 km/hour | 170 km/hour |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 5 doors |
| Vehicle Weight | 1610 kg | 970 kg |
| Vehicle Length | 4640 mm | 4000 mm |
| Vehicle Width | 1800 mm | 1670 mm |
| Vehicle Height | 1470 mm | 1390 mm |
| Wheelbase Size | 2840 mm | 2400 mm |
| Fuel Tank Capacity | 52 L | 42 L |
