1991 Nissan Sunny vs. 1999 Opel Vectra
To start off, 1999 Opel Vectra is newer by 8 year(s). Which means there will be less support and parts availability for 1991 Nissan Sunny. In addition, the cost of maintenance, including insurance, on 1991 Nissan Sunny would be higher. At 1,974 cc (4 cylinders), 1991 Nissan Sunny is equipped with a bigger engine. In terms of performance, 1999 Opel Vectra (114 HP @ 5400 RPM) has 40 more horse power than 1991 Nissan Sunny. (74 HP @ 4800 RPM) In normal driving conditions, 1999 Opel Vectra should accelerate faster than 1991 Nissan Sunny. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Vectra weights approximately 300 kg more than 1991 Nissan Sunny. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1999 Opel Vectra (170 Nm @ 3400 RPM) has 38 more torque (in Nm) than 1991 Nissan Sunny. (132 Nm @ 2800 RPM). This means 1999 Opel Vectra will have an easier job in driving up hills or pulling heavy equipment than 1991 Nissan Sunny.
Compare all specifications:
| 1991 Nissan Sunny | 1999 Opel Vectra | |
| Make | Nissan | Opel |
| Model | Sunny | Vectra |
| Year Released | 1991 | 1999 |
| Engine Position | Front | Front |
| Engine Size | 1974 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 114 HP |
| Engine RPM | 4800 RPM | 5400 RPM |
| Torque | 132 Nm | 170 Nm |
| Torque RPM | 2800 RPM | 3400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 1092 kg | 1392 kg |
| Vehicle Length | 3980 mm | 4500 mm |
| Vehicle Width | 1680 mm | 1720 mm |
| Vehicle Height | 1400 mm | 1500 mm |
