2006 Kia Optima vs. 1991 Rover 100
To start off, 2006 Kia Optima is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Rover 100. In addition, the cost of maintenance, including insurance, on 1991 Rover 100 would be higher. At 2,351 cc (4 cylinders), 2006 Kia Optima is equipped with a bigger engine. In terms of performance, 2006 Kia Optima (138 HP @ 5500 RPM) has 36 more horse power than 1991 Rover 100. (102 HP @ 6000 RPM). In normal driving conditions, 2006 Kia Optima should accelerate faster than 1991 Rover 100. With that said, vehicle weight also plays an important factor in acceleration. 2006 Kia Optima weights approximately 1130 kg more than 1991 Rover 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2006 Kia Optima (199 Nm @ 3000 RPM) has 64 more torque (in Nm) than 1991 Rover 100. (135 Nm @ 5000 RPM). This means 2006 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 100.
Compare all specifications:
| 2006 Kia Optima | 1991 Rover 100 | |
| Make | Kia | Rover |
| Model | Optima | 100 |
| Year Released | 2006 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 2351 cc | 1396 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 138 HP | 102 HP |
| Engine RPM | 5500 RPM | 6000 RPM |
| Torque | 199 Nm | 135 Nm |
| Torque RPM | 3000 RPM | 5000 RPM |
| Engine Bore Size | 86.5 mm | 75 mm |
| Engine Stroke Size | 100 mm | 79 mm |
| Fuel Type | Gasoline | Gasoline |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 2000 kg | 870 kg |
| Vehicle Length | 4730 mm | 3530 mm |
| Vehicle Width | 1820 mm | 1570 mm |
| Vehicle Height | 1420 mm | 1380 mm |
