1981 Nissan Sunny vs. 2002 Fiat Siena
To start off, 2002 Fiat Siena 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 1,680 cc (4 cylinders), 1981 Nissan Sunny is equipped with a bigger engine. In terms of performance, 2002 Fiat Siena (99 HP @ 6000 RPM) has 46 more horse power than 1981 Nissan Sunny. (53 HP @ 4800 RPM) In normal driving conditions, 2002 Fiat Siena should accelerate faster than 1981 Nissan Sunny. With that said, vehicle weight also plays an important factor in acceleration. 2002 Fiat Siena weights approximately 140 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 Fiat Siena (146 Nm @ 4000 RPM) has 42 more torque (in Nm) than 1981 Nissan Sunny. (104 Nm @ 2800 RPM). This means 2002 Fiat Siena will have an easier job in driving up hills or pulling heavy equipment than 1981 Nissan Sunny.
Compare all specifications:
| 1981 Nissan Sunny | 2002 Fiat Siena | |
| Make | Nissan | Fiat |
| Model | Sunny | Siena |
| Year Released | 1981 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 1680 cc | 1596 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 53 HP | 99 HP |
| Engine RPM | 4800 RPM | 6000 RPM |
| Torque | 104 Nm | 146 Nm |
| Torque RPM | 2800 RPM | 4000 RPM |
| Fuel Type | Diesel | Gasoline |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 910 kg | 1050 kg |
| Vehicle Length | 4140 mm | 4110 mm |
| Vehicle Width | 1650 mm | 1630 mm |
| Vehicle Height | 1400 mm | 1470 mm |
| Wheelbase Size | 2410 mm | 2380 mm |
