1981 Opel Ascona vs. 1977 Opel Kadett
To start off, 1981 Opel Ascona is newer by 4 year(s). Which means there will be less support and parts availability for 1977 Opel Kadett. In addition, the cost of maintenance, including insurance, on 1977 Opel Kadett would be higher. Both 1981 Opel Ascona and 1977 Opel Kadett are equipped with a 1,598 cc engine. In terms of performance, 1981 Opel Ascona (81 HP @ 5400 RPM) has 7 more horse power than 1977 Opel Kadett. (74 HP @ 5200 RPM). In normal driving conditions, 1981 Opel Ascona should accelerate faster than 1977 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1981 Opel Ascona weights approximately 199 kg more than 1977 Opel Kadett. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1981 Opel Ascona (134 Nm @ 2600 RPM) has 21 more torque (in Nm) than 1977 Opel Kadett. (113 Nm @ 4200 RPM). This means 1981 Opel Ascona will have an easier job in driving up hills or pulling heavy equipment than 1977 Opel Kadett.
Compare all specifications:
| 1981 Opel Ascona | 1977 Opel Kadett | |
| Make | Opel | Opel |
| Model | Ascona | Kadett |
| Year Released | 1981 | 1977 |
| Engine Position | Front | Front |
| Engine Size | 1598 cc | 1598 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 81 HP | 74 HP |
| Engine RPM | 5400 RPM | 5200 RPM |
| Torque | 134 Nm | 113 Nm |
| Torque RPM | 2600 RPM | 4200 RPM |
| Engine Bore Size | 79 mm | 85 mm |
| Engine Stroke Size | 81.5 mm | 69.8 mm |
| Engine Compression Ratio | 10.0:1 | 6.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 4 seats |
| Vehicle Weight | 1014 kg | 815 kg |
| Vehicle Length | 4380 mm | 3900 mm |
| Vehicle Width | 1680 mm | 1590 mm |
| Vehicle Height | 1400 mm | 1320 mm |
| Wheelbase Size | 2580 mm | 2610 mm |
