1971 Nissan Sunny vs. 2011 Kia Optima
To start off, 2011 Kia Optima is newer by 40 year(s). Which means there will be less support and parts availability for 1971 Nissan Sunny. In addition, the cost of maintenance, including insurance, on 1971 Nissan Sunny would be higher. At 2,000 cc (4 cylinders), 2011 Kia Optima is equipped with a bigger engine. In terms of performance, 2011 Kia Optima (274 HP @ 6000 RPM) has 221 more horse power than 1971 Nissan Sunny. (53 HP @ 6000 RPM) In normal driving conditions, 2011 Kia Optima should accelerate faster than 1971 Nissan Sunny. With that said, vehicle weight also plays an important factor in acceleration. 2011 Kia Optima weights approximately 835 kg more than 1971 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, 2011 Kia Optima (364 Nm @ 1750 RPM) has 269 more torque (in Nm) than 1971 Nissan Sunny. (95 Nm @ 4000 RPM). This means 2011 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 1971 Nissan Sunny.
Compare all specifications:
| 1971 Nissan Sunny | 2011 Kia Optima | |
| Make | Nissan | Kia |
| Model | Sunny | Optima |
| Year Released | 1971 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1171 cc | 2000 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 53 HP | 274 HP |
| Engine RPM | 6000 RPM | 6000 RPM |
| Torque | 95 Nm | 364 Nm |
| Torque RPM | 4000 RPM | 1750 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 700 kg | 1535 kg |
| Vehicle Length | 3840 mm | 4844 mm |
| Vehicle Width | 1500 mm | 1831 mm |
| Vehicle Height | 1400 mm | 1455 mm |
| Wheelbase Size | 2310 mm | 2797 mm |
