2005 Kia Optima vs. 1998 Opel Astra
To start off, 2005 Kia Optima is newer by 7 year(s). Which means there will be less support and parts availability for 1998 Opel Astra. In addition, the cost of maintenance, including insurance, on 1998 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 96 more horse power than 1998 Opel Astra. (74 HP @ 4500 RPM). In normal driving conditions, 2005 Kia Optima should accelerate faster than 1998 Opel Astra. With that said, vehicle weight also plays an important factor in acceleration. 2005 Kia Optima weights approximately 317 kg more than 1998 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 74 more torque (in Nm) than 1998 Opel Astra. (167 Nm). This means 2005 Kia Optima will have an easier job in driving up hills or pulling heavy equipment than 1998 Opel Astra.
Compare all specifications:
| 2005 Kia Optima | 1998 Opel Astra | |
| Make | Kia | Opel |
| Model | Optima | Astra |
| Year Released | 2005 | 1998 |
| Engine Position | Front | Front |
| Engine Size | 2671 cc | 1686 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 170 HP | 74 HP |
| Engine RPM | 4000 RPM | 4500 RPM |
| Torque | 241 Nm | 167 Nm |
| Engine Bore Size | 87 mm | 80 mm |
| Engine Stroke Size | 75 mm | 86 mm |
| Engine Compression Ratio | 10.0:1 | 18.4:1 |
| Drive Type | Front | Front |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 3 doors |
| Vehicle Weight | 1487 kg | 1170 kg |
| Vehicle Length | 4730 mm | 4060 mm |
| Vehicle Width | 1820 mm | 1700 mm |
| Vehicle Height | 1420 mm | 1420 mm |
| Wheelbase Size | 2710 mm | 2650 mm |
| Fuel Tank Capacity | 65 L | 53 L |
