1981 Nissan Sunny vs. 2005 Opel Signum
To start off, 2005 Opel Signum is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Nissan Sunny. In addition, the cost of maintenance, including insurance, on 1981 Nissan Sunny would be higher. At 2,171 cc (4 cylinders), 2005 Opel Signum is equipped with a bigger engine. In terms of performance, 2005 Opel Signum (124 HP @ 3250 RPM) has 50 more horse power than 1981 Nissan Sunny. (74 HP @ 5600 RPM) In normal driving conditions, 2005 Opel Signum should accelerate faster than 1981 Nissan Sunny. With that said, vehicle weight also plays an important factor in acceleration. 2005 Opel Signum weights approximately 795 kg more than 1981 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, 2005 Opel Signum (280 Nm @ 1500 RPM) has 157 more torque (in Nm) than 1981 Nissan Sunny. (123 Nm @ 2800 RPM). This means 2005 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1981 Nissan Sunny.
Compare all specifications:
| 1981 Nissan Sunny | 2005 Opel Signum | |
| Make | Nissan | Opel |
| Model | Sunny | Signum |
| Year Released | 1981 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1487 cc | 2171 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 74 HP | 124 HP |
| Engine RPM | 5600 RPM | 3250 RPM |
| Torque | 123 Nm | 280 Nm |
| Torque RPM | 2800 RPM | 1500 RPM |
| Fuel Type | Gasoline | Diesel |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 815 kg | 1610 kg |
| Vehicle Length | 4140 mm | 4640 mm |
| Vehicle Width | 1650 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2410 mm | 2710 mm |
