1991 Nissan Sunny vs. 1978 Opel Kadett
To start off, 1991 Nissan Sunny is newer by 13 year(s). Which means there will be less support and parts availability for 1978 Opel Kadett. In addition, the cost of maintenance, including insurance, on 1978 Opel Kadett would be higher. At 1,974 cc (4 cylinders), 1991 Nissan Sunny is equipped with a bigger engine. In terms of performance, 1991 Nissan Sunny (74 HP @ 4800 RPM) has 23 more horse power than 1978 Opel Kadett. (51 HP @ 5600 RPM). In normal driving conditions, 1991 Nissan Sunny should accelerate faster than 1978 Opel Kadett. With that said, vehicle weight also plays an important factor in acceleration. 1991 Nissan Sunny weights approximately 272 kg more than 1978 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, 1991 Nissan Sunny (132 Nm @ 2800 RPM) has 52 more torque (in Nm) than 1978 Opel Kadett. (80 Nm @ 3400 RPM). This means 1991 Nissan Sunny will have an easier job in driving up hills or pulling heavy equipment than 1978 Opel Kadett.
Compare all specifications:
| 1991 Nissan Sunny | 1978 Opel Kadett | |
| Make | Nissan | Opel |
| Model | Sunny | Kadett |
| Year Released | 1991 | 1978 |
| Engine Position | Front | Front |
| Engine Size | 1974 cc | 1194 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 51 HP |
| Engine RPM | 4800 RPM | 5600 RPM |
| Torque | 132 Nm | 80 Nm |
| Torque RPM | 2800 RPM | 3400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Number of Doors | 3 doors | 3 doors |
| Vehicle Weight | 1092 kg | 820 kg |
| Vehicle Length | 3980 mm | 4150 mm |
| Vehicle Width | 1680 mm | 1590 mm |
| Vehicle Height | 1400 mm | 1390 mm |
