1981 Nissan Sunny vs. 2002 Opel Signum
To start off, 2002 Opel Signum is newer by 21 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 2,957 cc (6 cylinders), 2002 Opel Signum is equipped with a bigger engine. In terms of performance, 2002 Opel Signum (174 HP @ 4000 RPM) has 100 more horse power than 1981 Nissan Sunny. (74 HP @ 5600 RPM) In normal driving conditions, 2002 Opel Signum should accelerate faster than 1981 Nissan Sunny. With that said, vehicle weight also plays an important factor in acceleration. 2002 Opel Signum weights approximately 855 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, 2002 Opel Signum (377 Nm @ 1900 RPM) has 254 more torque (in Nm) than 1981 Nissan Sunny. (123 Nm @ 2800 RPM). This means 2002 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 | 2002 Opel Signum | |
| Make | Nissan | Opel |
| Model | Sunny | Signum |
| Year Released | 1981 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 1487 cc | 2957 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 74 HP | 174 HP |
| Engine RPM | 5600 RPM | 4000 RPM |
| Torque | 123 Nm | 377 Nm |
| Torque RPM | 2800 RPM | 1900 RPM |
| Fuel Type | Gasoline | Diesel |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 815 kg | 1670 kg |
| Vehicle Length | 4140 mm | 4640 mm |
| Vehicle Width | 1650 mm | 1800 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2410 mm | 2840 mm |
