2005 Kia Optima vs. 1991 Opel Astra
To start off, 2005 Kia Optima is newer by 14 year(s). Which means there will be less support and parts availability for 1991 Opel Astra. In addition, the cost of maintenance, including insurance, on 1991 Opel Astra would be higher. At 2,671 cc (6 cylinders), 2005 Kia Optima is equipped with a bigger engine. In terms of performance, 2005 Kia Optima (170 HP @ 4000 RPM) has 70 more horse power than 1991 Opel Astra. (100 HP @ 5600 RPM). In normal driving conditions, 2005 Kia Optima should accelerate faster than 1991 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Kia Optima weights approximately 392 kg more than 1991 Opel Astra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2005 Kia Optima (241 Nm) has 106 more torque (in Nm) than 1991 Opel Astra. (135 Nm). This means 2005 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 1991 Opel Astra.
Compare all specifications:
| 2005 Kia Optima | 1991 Opel Astra | |
| Make | Kia | Opel |
| Model | Optima | Astra |
| Year Released | 2005 | 1991 |
| Body Type | Sedan | Station Wagon |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 1597 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 170 HP | 100 HP |
| Engine RPM | 4000 RPM | 5600 RPM |
| Torque | 241 Nm | 135 Nm |
| Engine Bore Size | 87 mm | 79 mm |
| Engine Stroke Size | 75 mm | 81.5 mm |
| Engine Compression Ratio | 10.0:1 | 9.8:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1487 kg | 1095 kg |
| Vehicle Length | 4730 mm | 4280 mm |
| Vehicle Width | 1820 mm | 1690 mm |
| Vehicle Height | 1420 mm | 1430 mm |
| Wheelbase Size | 2710 mm | 2640 mm |
| Fuel Tank Capacity | 65 L | 52 L |
